[MI 019-202] I/A Series Intelligent Vortex Flowmeter ...€¦ · With HART Communication Installation, Operation, and Maintenance. MI 019-202 – April 2010 . iii ... Ensuring Premium

MI 019-202April 2010

Instruction

I/A Series® Intelligent Vortex FlowmeterModels 84F-T, 84F-U, 84W-T, and 84W-U

With HART Communication

Installation, Operation, and Maintenance

MI 019-202 – April 2010

ContentsFigures................................................................................................................................... vii

Tables..................................................................................................................................... ix

1. Introduction ...................................................................................................................... 1

Overview ................................................................................................................................... 1

Reference Documents ............................................................................................................... 1

Standard Specifications ............................................................................................................. 1

Electrical Safety Specifications ................................................................................................... 9ATEX and IECEx Warnings .............................................................................................. 11ATEX Compliance Documents .......................................................................................... 11IECEx Compliance Documents ......................................................................................... 11

Configurable Parameters ......................................................................................................... 11

2. Installation ...................................................................................................................... 15

Fundamental Installation Requirements .................................................................................. 15

Unpacking .............................................................................................................................. 15Flowmeter Identification .................................................................................................... 15

Mechanical Installation ........................................................................................................... 16

Dimensions ............................................................................................................................. 17

Hydrostatic Piping Testing ..................................................................................................... 17

Piping Considerations ............................................................................................................. 17Effects of Piping on Flowmeter Performance ...................................................................... 17Liquid Installations ............................................................................................................. 18Gas Installations ................................................................................................................. 19Steam Installations ............................................................................................................. 20

Saturated Steam ............................................................................................................. 20Superheated Steam ........................................................................................................ 20

Insulation ........................................................................................................................... 21Vibration ............................................................................................................................ 21Ambient Temperature Limitations / Considerations ........................................................... 22Meter Servicing .................................................................................................................. 24Location of Pressure and Temperature Taps ....................................................................... 25

Mechanically Installing the Flowmeter Body ........................................................................... 2584F – Flanged Body ........................................................................................................... 2684W – Wafer Body ............................................................................................................ 26

Mounting the Remote Electronics Housing ............................................................................ 28

Cover Locks ............................................................................................................................ 29

Positioning the Display ........................................................................................................... 29

Setting the Write Protect Jumper ............................................................................................ 30

iii

MI 019-202 – April 2010 Contents

Positioning the Housing .......................................................................................................... 30

Electrical Installation ............................................................................................................... 31Integrally Mounted Electronics .......................................................................................... 31Remotely Mounted Electronics .......................................................................................... 31

Preparing the Remote Signal Cable ................................................................................ 31Connecting the Remote Signal Cable ............................................................................ 33Installation with Conduit .............................................................................................. 34Explosionproof / Flameproof Certifications ................................................................... 34

Field Termination Wiring ....................................................................................................... 34Conduit / Cable Gland Connections .................................................................................. 35Accessing Flowmeter Field Terminals ................................................................................. 35Wiring the Flowmeter to a Control Loop ........................................................................... 36Multidrop Communication ................................................................................................ 39Wiring a Flowmeter With a Pulse Output .......................................................................... 39Wiring a Flowmeter with a Pulse Output (3-Wire) ............................................................ 43

3. Operation Via Local Display ........................................................................................... 45

Local Keypad/Display ............................................................................................................. 45

Display Bar Indicator .............................................................................................................. 46

Password ................................................................................................................................. 46Entering the Password ........................................................................................................ 46

Activating an Edit, Pick-List, or User Menu Block .................................................................. 47

Editing Numbers and Strings .................................................................................................. 47Signed Numbers ............................................................................................................ 47Unsigned Numbers ....................................................................................................... 47Strings ........................................................................................................................... 47

Picking from a List .................................................................................................................. 47

Configuration Database .......................................................................................................... 48

Using the Menu Tree .............................................................................................................. 49Moving Inside the Menu System ........................................................................................ 49Top Level Menu ................................................................................................................. 50Measure Mode ................................................................................................................... 52Totals Mode ....................................................................................................................... 52Status Mode ....................................................................................................................... 52View Mode ......................................................................................................................... 54Setup Mode ........................................................................................................................ 54

Setting Fluid Parameters ................................................................................................ 55Setting Flow Parameters ................................................................................................ 55Setting Tuning Parameters ............................................................................................ 56Setting Totals Parameters .............................................................................................. 56Setting Output Parameters ............................................................................................ 56Setting Piping Parameters .............................................................................................. 57Setting Tag Parameters .................................................................................................. 59Setting Flowtube Parameters ......................................................................................... 60Changing the Password ................................................................................................. 60Setup Menu Tree ........................................................................................................... 61

Calibration/Test Mode ....................................................................................................... 63

iv

Contents MI 019-202 – April 2010

Calibration .................................................................................................................... 64Test ............................................................................................................................... 64

Error Messages ........................................................................................................................ 66Operation Error Messages .................................................................................................. 66Configuration Error Messages ............................................................................................ 66

4. Operation Via HART Communicator ............................................................................. 69

Online Menu .......................................................................................................................... 69Explanation of Parameters .................................................................................................. 73

5. Troubleshooting.............................................................................................................. 79

Flowmeter Output Indicates Flow When There Is No Flow ............................................... 79Flowmeter Has No Output (No mA Output and the Display [If So Equipped] Is Blank) .. 80Flowmeter Has No Output With Flow, But Has a 4 mA Signal and a Lighted Display (If So Equipped). ......................................................................................................................... 80Flowmeter Output Increases With Flow, However When It Approaches Full Scale, the Output Suddenly Goes To 4 mA. ................................................................................................... 81Flowmeter with Remote Mounted Electronics Has No Output or Low Output With Flowing Conditions ......................................................................................................................... 81Electronics Module Test ..................................................................................................... 82Flowmeter Has Incorrect Output ....................................................................................... 83

6. Maintenance.................................................................................................................... 85

Introduction ............................................................................................................................ 85Vortex Generation and Shedding ....................................................................................... 85Vortex Sensing ................................................................................................................... 85

Electronic Module ................................................................................................................... 86Electronic Module Removal ............................................................................................... 86Electronic Module Replacement ......................................................................................... 87

Neck Board Replacement ........................................................................................................ 88Removal Procedure ............................................................................................................ 89Installation Procedure ......................................................................................................... 90

Preamplifier Replacement ....................................................................................................... 92Removal Procedure ........................................................................................................ 92Installation Procedure .................................................................................................... 93

Post-Assembly Dielectric Test ................................................................................................. 93

Sensor Replacement ................................................................................................................ 94Integrally Mounted Flowmeter ........................................................................................... 94

Sensor Assembly Removal .............................................................................................. 94Sensor Assembly Installation .......................................................................................... 94

Remotely Mounted Flowmeter ........................................................................................... 98Sensor Assembly Removal .............................................................................................. 99Sensor Assembly Installation .......................................................................................... 99

Appendix A. Isolation Valves.............................................................................................. 103Replacing the Sensor ............................................................................................................. 103

v

MI 019-202 – April 2010 Contents

Replacing or Installing an Isolation Valve .............................................................................. 104

Index .................................................................................................................................. 107

vi

Figures

1 ANSI Flange Ratings per ASME B16.5, Group 2.2 Materials ...................................... 4 2 ANSI Flange Ratings per ASME B16.5, Group 2.1 Materials ...................................... 4 3 ANSI Flange Ratings per ASME B16.5, Group 1.1 Materials ...................................... 5 4 Metric Flange Ratings per EN 1092.1, Material Group 14E0 ...................................... 5 5 Metric Flange Ratings per EN 1092.1, Material Group 10E0 ...................................... 6 6 Metric Flange Ratings per EN 1092.1, Material Group 3E0 ........................................ 6 7 Pressure -Temperature Limits with Isolation Valves ..................................................... 8 8 Sample Flowmeter Data Plate ...................................................................................... 16 9 Sample Junction Box Data Plate .................................................................................. 16

10 Piping Arrangements .................................................................................................... 19 11 Piping for Gas Applications .......................................................................................... 20 12 Piping for Saturated Steam Applications ...................................................................... 20 13 Insulation ..................................................................................................................... 21 14 Sensor Mounting to Minimize Effect of Vibration ....................................................... 21 15 Typical Piping Configuration ....................................................................................... 24 16 Pressure and Temperature Tap Locations ..................................................................... 25 17 84F Flowmeter Installation .......................................................................................... 26 18 84W Flowmeter Centering (using Spacers) .................................................................. 28 19 Mounting the Remote Electronics Housing ................................................................. 29 20 Cover Locks ................................................................................................................. 29 21 Write Protect Jumper ................................................................................................... 30 22 Housing Screw or Clip Location .................................................................................. 31 23 Connection of Remote Signal Cable (Junction Box End) ............................................. 34 24 Accessing Field Terminals ............................................................................................ 35 25 Identification of Field Terminals .................................................................................. 36 26 Supply Voltage and Loop Load .................................................................................... 37 27 Loop Wiring 4 to 20 mA Output Flowmeters .............................................................. 38 28 Typical Multidrop Network ......................................................................................... 39 29 Wiring an 84F-T or 84W-T Flowmeter with a Pulse Output

Transistor Switch (sinking) Counter Input with Receiver Supplied Power ................... 40 30 Wiring an 84F-T or 84W-T Flowmeter with a Pulse Output

Transistor Switch (sinking) Counter Input withExternal Power Supply and Pull-Up Resistor ................................................................ 41

31 Wiring an 84F-T or 84W-T Flowmeter with a Pulse OutputTransistor Switch (sourcing) Counter Input withExternal Power Supply and Pull-Up Resistor ................................................................ 42

32 Wiring an 84F-T or 84W-T Flowmeter with a Pulse Output Using a 3-Wire Hookup 43 33 Local Display ............................................................................................................... 45 34 Top Level Modes and Their Basic Functions ............................................................... 51 35 Status Mode Structure Diagram ................................................................................... 53 36 View Mode Structure Diagram .................................................................................... 54 37 Piping Configurations .................................................................................................. 59 38 Setup Menu Tree (1 of 3) ............................................................................................ 61

vii

MI 019-202 – April 2010 Figures

39 Setup Menu Tree (2 of 3) ............................................................................................ 62 40 Setup Menu Tree (3 of 3) ............................................................................................ 63 41 Calibration/Test Menu Tree ........................................................................................ 65 42 84 Vortex Flowmeter Online Menu Tree (1 of 4) ........................................................ 69 43 84 Vortex Flowmeter Online Menu Tree (2 of 4) ........................................................ 70 44 84 Vortex Flowmeter Online Menu Tree (3 of 4) ........................................................ 71 45 84 Vortex Flowmeter Online Menu Tree (4 of 4) ........................................................ 72 46 Electronic Module Connections ................................................................................... 87 47 Display Connection ..................................................................................................... 88 48 Preamplifier Assembly - Integrally Mounted ................................................................ 90 49 Preamplifier Assembly - Remotely Mounted ................................................................ 92 50 Connections for Post-Assembly Dielectric Test ............................................................ 93 51 Sensor Replacement - Integrally Mounted Flowmeter .................................................. 96 52 Bonnet Bolt Torquing Sequence .................................................................................. 97 53 Sensor Replacement - Remotely Mounted Flowmeter .................................................. 100 54 Bonnet Bolt Torquing Sequence .................................................................................. 104 55 Isolation Valve ............................................................................................................. 105 56 Dual Manifold ............................................................................................................. 106

viii

Tables

1 Reference Documents .................................................................................................. 1 2 Nominal Flow Velocity Limits ..................................................................................... 2 3 Electrical Safety Specifications ...................................................................................... 9 4 Configurable Parameters .............................................................................................. 11 5 Mounting Arrangements .............................................................................................. 23 6 Preparation of Remote Signal Cable (Junction Box End) ............................................. 32 7 Operation of Function Keys ......................................................................................... 46 8 Default Database When User Information Not Supplied ............................................. 48 9 Default Database for Liquid ......................................................................................... 48

11 Default Database for Steam .......................................................................................... 49 10 Default Database for Gas ............................................................................................. 49 12 Operation Error Messages ............................................................................................ 66 13 Configuration Error Messages ...................................................................................... 66 14 Electronic Module Terminal Block Connections ......................................................... 86 15 Maximum Test Pressure ............................................................................................... 98

ix

MI 019-202 – April 2010 Tables

x

1. Introduction

OverviewThe 84F-T, 84F-U, 84W-T, and 84W-U Vortex Flowmeters measure fluid (liquid, gas, or steam) flow rates using the principle of vortex shedding. The flowmeters produce a digital signal (HART protocol) and a 4-20 mA analog signal. The 84F-T and 84W-T also produce a pulse signal proportional to the volumetric flow rate.

Fluid flowing through the flowmeter body passes a specially shaped vortex shedder that causes vortices to form and shed alternately from the sides of the shedder at a rate proportional to the flow rate of the fluid. These shedding vortices create an alternating differential pressure that is sensed by a detector located above the shedder. A pulsed voltage is generated by the detector with a frequency that is synchronous with the vortex shedding frequency. This signal is then conditioned by an Electronic Module and processed by the microcontroller to produce a digital signal, an analog (4-20 mA dc) signal, and (in the 84F-T and 84W-T) a pulse signal.

The flowmeter allows direct analog connection to common receivers while still providing full digital communications using a HART Communicator or a PC-Based configurator.

Reference DocumentsIn addition to this instruction, there is other user documentation supporting the 84F-T, 84F-U, 84W-T, and 83W-U Vortex Flowmeters, as listed below.

Table 1. Reference Documents

Document Number Document Description

Dimensional Prints

DP 019-120DP 019-121DP 019-122

84F Flanged Body — Single Measurement Configuration84F Flanged Body — Dual Measurement Configuration84W Wafer Body

Parts Lists

PL 008-714 84F Flanged and 84W Wafer Body Flowmeters

Technical Information and Instructions

B0800AJ

MI 019-177MI 019-179

Ensuring Premium Performance with Foxboro 84 Series Vortex Flowmeters84 Vortex Flowmeter FM and CSA Connection DiagramsFlow Products Safety Information(a)

(a) Available in many languages on line at www.ips.invensys.com/en/products/measurement/Pages/SafetyInstructionsforFlow.aspx

1

MI 019-202 – April 2010 1. Introduction

Standard Specifications

Process Temperature Limits:Standard Temp/Fluorolube Fill: –20 and +90°C (0 and 200°F)Standard Temp/Silicone Fill: –20 and +200°C (0 and 400°F)High Temp/Unfilled: 200 and 430°C (400 and 800°F)

Ambient Temperature Limits:With Indicator: –20 and +80°C (0 and +176°F)Without Indicator: -40 and +80°C (-40 and +176°F)

Power Supply Requirements:

Supply Voltage Limits: 15.5 and 42 V dc

Supply Current:

Digital Mode: 10 mA dc nominal

Analog Mode: 22 mA dc maximum

Reynolds Number Requirements

Rd = 5000 minimum; Automatic compensation for the nonlinear behavior of vortex shedding in the Rd range 5000 to 20,000 is built into the flowmeter. This compensation requires the user to input values for the flowing density and viscosity. Best accuracy is achieved at higher Reynolds numbers (>30,000 Rd).

Nominal Flow Velocity Limits: Can be calculated per Table 2.

NOTEThe calculations in Table 2 apply for many applications but as they only provide nominal limits, Invensys recommends using the FlowExpert Pro™ sizing program for your specific application.

Static Pressure Limits:

Minimum: Pressure sufficient to prevent flashing and meet the pressure drop requirements to attain maximum flow rate. Refer to the FlowExpertPro sizing program.

Maximum: Determined by flange rating.

Flowmeter Output:

Analog: 4 to 20 mA dc into a maximum 1350 ohm load depending on power supply (see Figure 26).

Digital (HART): Digital signal conveyed at 1200 Baud transmission rates via FSK tones superimposed on power supply leads.

Table 2. Nominal Flow Velocity Limits

RangeLimit

Std. Temp. Range High Temp. Range

ft/s m/s ft/s m/s

Lower

Upper

2.5/ ρf 3.0/ ρf 5.0/ ρf 6.0/ ρf

250/ ρf 300/ ρf 250/ ρf 300/ ρf

2

1. Introduction MI 019-202 – April 2010

Pulse Output (84F-T and 84W-T only): Isolated 2 wire transistor switch.

Pulse rate (0 to 10, 100, or 1000 Hz) proportional to volumetric flow rate or total flow.

NOTEAccuracy of 0 to 10 Hz pulse rate is ±0.1% from 3 to 10 Hz and ±0.3% from0 to 3 Hz.

Pulse Output Specifications

Isolated 2-wire transistor switch

Applied voltage: 5 to 30 V dc

Maximum ‘ON’ state voltage drop: 1.0 V dc

Maximum ‘ON’ state current: 20 mA dc

Reverse polarity protected

Short Circuit protected

Connectable to pull-up and pull-down counters

Maximum Working Pressure:

84F Flanged Body Flowmeters

The maximum working pressure (MWP) of the flowtube at 100°F is shown on the data label.

The MWP at other temperatures for the 84F Flanged Body Flowmeter without isolation valve is given in Figures 1 through 6. The nominal line size, body and flange material, and flange rating required to use these figures is found within the model number on the data label as follows:

84F-T02S2SDTJK

FLANGE RATING CODEBODY AND FLANGE MATERIAL

NO ISOLATION VALVE (S or D)

NOMINAL LINE SIZE

3


Figure 1. ANSI Flange Ratings per ASME B16.5, Group 2.2 Materials


1600

1400

1200

1000

800

600

400

200

00 100 200 300 400 500 600 700 800

PROCESS TEMPERATURE, °F

PR

OC

ES

S P

RE

SS

UR

E, p

sig

200°F 400°F 800°F

1440

720

275

845 psig

420 psig

80 psig

CLASS 600

CLASS 300

CLASS 150

-20

CAST TUBES

FLANGE MAT’L3/4 TO 4 in: CF8M04S1: 316 ss

FLUOROLUBESENSORLIMIT

EXTENDEDTEMP. LIMIT(NO FILL)

SILICONSENSORLIMIT

810 psig

405 psig

80 psig

1600

1400

1200

1000

800

600

400

200

00 100 200 300 400 500 600 700 800


PR

OC

ES

S P

RE

SS

UR

E, p

sig

200°F 400°F 800°F

1440

720

275

-20



SILICONSENSORLIMIT

CLASS 300

CLASS 150

CLASS 600FABRICATED TUBES

FLANGE MAT’L6 TO 12 in: 304 ss

4



Figure 4. Metric Flange Ratings per EN 1092.1, Material Group 14E0

1600

1400

1200

1000

800

600

400

200

00 100 200 300 400 500 600 700 800


PR

OC

ES

S P

RE

SS

UR

E, p

sig

200°F 400°F 800°F

1480

740

285

825 psig

410 psig

80 psig

CLASS 600

CLASS 300

CLASS 150



SILICONSENSORLIMIT

-20

FABRICATED TUBESFLANGE MAT’L6 TO 12 in: cs

120

100

80

60

40

20

00 100 200 300 400 450

PROCESS TEMPERATURE, °C

PR

OC

ES

S P

RE

SS

UR

E, b

ar

63

16

43090

67.8 bar

PN 100

PN 63

PN 16



SILICONSENSORLIMIT

PN 4042.7 bar

27.1 bar

10.8 bar

-10

90°C 200°C 430°C

CAST TUBES

FLANGE MAT’LDN 15 TO DN 100: CF8M04S1: 316 ss

5




120

100

80

60

40

20

00 100 200 300 400 450


PR

OC

ES

S P

RE

SS

UR

E, b

ar

63

16

43090

54.2 bar

PN 100

PN 63

PN 16



SILICONSENSORLIMIT

PN 4034.1 bar

21.6 bar

8.6 bar

-10

90°C 200°C 430°C

FABRICATED TUBES

FLANGE MAT’LDN 150 TO DN 300: 304 ss

120

100

80

60

40

20

0

0 100 200 300 400 450PROCESS TEMPERATURE, °C

PR

OC

ES

S P

RE

SS

UR

E, b

ar

63

16

43090

42.5 bar

PN 100

PN 63

PN 16



SILICONSENSORLIMIT

PN 40

26.8 bar

17.0 bar

6.8 bar

90°C 200°C 430°C

-10

FABRICATED TUBES

FLANGE MAT’LDN 150 TO DN 300: cs

6


Isolation Valves

Flowmeters equipped with an isolation valve have Pressure-Temperature limits as shown in Figure 7. The temperature range of your flowmeter is found within the model number on the data label as follows:

84F-T02S2KDTJKTEMPERATURE RANGEISOLATION VALVE (K or L)

STD TEMP = D, F, R, or SEXT TEMP = C or T

7


Figure 7. Pressure -Temperature Limits with Isolation Valves

845 psig

58.3 bar

90°C 200°C 430°C



SILICONSENSORLIMIT

35


PR

OC

ES

S P

RE

SS

UR

E, b

ar

43090

120

100

80

60

40

20

00 100 200 300 400 50 150 250 350 450

LINEARLYINTERPOLATED

P-T LIMITSWITHISOLATIONVALVE

EXTENDED TEMP.VALVE WITHGRAPHITE SEAT

204°C

STANDARD TEMP.VALVE WITHGLASS-FILLEDptfe SEAT

38°C

-10

1600

1400

1200

1000

800

600

400

200

0-20 0 100 200 300 400 500 600 700 800


PR

OC

ES

S P

RE

SS

UR

E, p

sig

200°F 400°F 800°F

1440

LINEARLYINTERPOLATED

EXTENDED TEMP.VALVE WITHGRAPHITE SEAT



SILICONSENSORLIMIT

P-T LIMITSWITHISOLATIONVALVE

STANDARD TEMP.VALVE WITHGLASS-FILLEDptfe SEAT

500

8


84W Wafer Body Flowmeters

The maximum working pressure (MWP) of the flowtube at 100°F is shown on the data label. The flowmeters are designed to withstand pressure within carbon steel ANSI Class 600 and PN 100 flange ratings. The flowmeters have been designed to withstand the full pressure rating for carbon steel flanges.

Electrical Safety SpecificationsNOTE

1. These flowmeters have been designed to meet the electrical safety descriptions listed in Table 3. For detailed information or status of testing laboratory approvals/certifications, contact Invensys.

2. See MI 019-179 for additional ATEX and IECEx safety information.

3. With intrinsically safe approvals and certifications with a 24 V dc supply, an active barrier is required.

Table 3. Electrical Safety Specifications

Agency Certification, Types of Protection,

and Area Classification Application Conditions

Electrical Safety Design

Code

ATEX intrinsically safe: II 1 GD EEx ia IIC Sira 06ATEX2067XIntegrally mounted or remote mounted (electronics and junction box).Temperature Class T4, T103°C,Ta = -40 to +80°C.

E

ATEX flameproof: II 2/1 (1) GD EEx d [ia] ia Sira 06ATEX2067XIntegrally mounted electronics. Temperature Class T4, T85°C,Ta = -20 to +80°C.

H

ATEX flameproof: II 2 (1) GD EEx d [ia] Sira 06ATEX2067XElectronics housing of remote mounted version. Temperature Class T4, T85°C,Ta = -20 to +80°C.

ATEX flameproof: II 1 GD EEx ia IIC. Sira 06ATEX2067XFlowtube junction box of remote mounted versionTemperature Class T4, T103°C,Ta = -40 to +80°C.

FM intrinsically safe for Class I, II, III, Division 1, Groups A, B, C, D, E, F, G. Also, Class I, Zone 0, AEx ia IIC.

Connect per MI 019-177.Temperature Class T4; Ta = 80°C F

9


FM explosionproof with IS sensor connection for Class I, Division 1, Groups B, C, and D;dust-ignitionproof forClass II, Division 1, Groups E, F, and G;Class III, Division 1.

Connect per MI 019-177.Temperature Class T5. Ta = 85°C

G

FM nonincendive for Class I, Division 2, Groups A, B, C, and D; Class II, Division 2, Groups F and G; Class III, Division 2.

Connect per MI 019-177.Temperature Class T4. T=80°C K

CSA intrinsically safe for Class I, II, III, Division 1, Groups A, B, C, D, E, F, G. Also, Zone certified intrinsically safe Ex ia IIC.

Temperature Class T4;Ta = -40 to +80°CInstall per MI 019-177.

C

CSA explosionproof with IS sensor connection for Class I, Division 1, Groups B, C, and D;dust-ignitionproof forClass II, Division 1, Groups E, F, and G;Class III, Division 1.Also, Zone certified Ex d [ia] IIC

Temperature Class T5. Ta =60°C

Temperature Class T5,Ta = -40 to +80°C

D

CSA for Class I, Division 2, Groups A, B, C, and D; Class II, Division 2, Groups F and G; Class III, Division 2.

Temperature Class T4. T=80°CM

IECEx intrinsically safe Ex ia IICDust-ignitionproof Ex tD A20 IP66

IECEx SIR 06.0020XIntegrally mounted or remote mounted (electronics and junction box).Temperature Class T4, T103°CTa = -40 to +80°C.

L

IECEx flameproof: Ex d [ia] ia IICDust-ignitionproof Ex tD A20 IP66

IECEx SIR 06.0020XIntegrally mounted electronics.Temperature Class T4, T85°C,Ta = -20 to +80°C.

B

IECEx flameproof: Ex d [ia]Dust-ignitionproof Ex tD A20 IP66

IECEx SIR 06.0020XElectronic housing of remote mounted version.Temperature Class T4, T85°CTa = -20 to +80°C.

IECEx flameproof: Ex ia IICDust-ignitionproof Ex tD A20 IP66

IECEx SIR 06.0020XFlowtube junction box of remote mounted versionTemperature Class T4, T103°CTa = -40 to +80°C.

Unit with CE mark and PED controls and records. Y

Unit does not have CE mark; not to be installed in European Union (EU) countries. Z

Table 3. Electrical Safety Specifications (Continued)

Agency Certification, Types of Protection,

and Area Classification Application Conditions

Electrical Safety Design

Code

10


ATEX and IECEx WarningsEnsure area is known to be nonhazardous before removing cover.To prevent ignition of flammable or combustible atmospheres, disconnect power before servicing.Explosion Hazard - Do not disconnect equipment unless poser has been turned off or the area is known to be nonhazardous.Explosion Hazard - Substitution of components may impair safety.Do not open while circuits are alive.

ATEX Compliance DocumentsEN 50014: 1997 EN 50284: 1999EN 50018: 2000 EN 50281-1-1: 1998EN 50020: 2002

IECEx Compliance DocumentsIEC 60079-0: 2000, Edition 3.1IEC 60079-1: 2003, Edition 5IEC 60079-11: 1999, Edition 4IEC 61241-0: 2004, Edition 1IEC 61241-1: 2004, Edition 1

Configurable ParametersTable 4 lists all of the configurable parameters and the factory default for the 84 Vortex Flowmeter.

Table 4. Configurable Parameters

ParameterParameter

Name CapabilityFactory Default

Configurable with

Integral Indicator

HART Comm.

PC-BasedConfig.

Fluid 2 Fluid

Fluid Type 3 New Gas, Liquid, Steam Liquid Yes Yes Yes

Fluid Name 3 Name Water Yes Yes Yes

Temperature Unit 3 TmpEGU degK, degF, degC, degR deg F Yes Yes Yes

Flow Temperature 3 FlwTmp 70 Yes Yes Yes

Density Unit 3 DenEGU Pick list of density units lb/ft3 Yes Yes Yes

Flow Density 3 FlwDen 62.315 Yes Yes Yes

Base Density 3 BasDen 62.378 Yes Yes Yes

Viscosity Unit 3 VisEGU cPoise or cStoke cP Yes Yes Yes

Viscosity 3 Visc 0.98 Yes Yes Yes

Flow 2 Flow

11


Flow Type 3 FlwMap VolFlow, BVolFlow, MassFlow

VolFlow Yes Yes Yes

Flow Units 3 FlwEGU Picklist gal/min Yes Yes Yes

Flow Upper Range Value

3 FlwURV 232.73 Yes Yes Yes

Flow Damping Factor 3 FlwDmp Pick list of 8 choices from 0 to 32 s

2 Yes Yes Yes

Flow Velocity Unit 3 VelEGU Picklist ft/s Yes No No

Tuning 2Tuning

Signal Conditioning 3AddDrop On or Off On Yes Yes Yes

Reynolds NumberCorrection

3 ReyCor On or Off Off Yes Yes Yes

Low Flow Cut-In Level 3 LFCI 1 through 8 4 Yes Yes Yes

Total 2 Total

Net Total 3 TotNet

Map 4 Map Volume, Mass, BVolume

Volume Yes Yes Yes

EGU 4 EGU Pick list dependent on Mapping

m3 Yes Yes Yes

Grand Total 3 TotGrd

Map 4 Map Volume, Mass, BVolume

Volume Yes Yes Yes

EGU 4 EGU Pick list dependent on Mapping

m3 Yes Yes Yes

Output 2 Output

Coms 3 Coms

Poll Address 4PolAdr 0 through 15 0 Yes Yes Yes

Preambles 4Preambl 2 to 20 5 Yes Yes Yes

Fail 3 Fail Downscale or Upscale Down-scale

Yes Yes Yes

Pulse 3 Pulse

Pulse 4 Pulse Raw, Rate, Total Rate Yes Yes Yes

(If Raw) Pul=Raw Yes Yes Yes

(If Rate)

Upper Freq End Point

4 Freq 10, 100, 1000 1000 Yes Yes Yes


ParameterParameter


Configurable with

Integral Indicator

HART Comm.

PC-BasedConfig.

12


(If Total)

Pulse Width 4 Pwidth 50 ms Yes Yes Yes

Units 4 EGU ft3 Yes Yes Yes

Units per Pulse 4 U/Pulse 1 Yes Yes Yes

Display 3Display

Show 4 Show FlwVol, TotNet, TotGrd (measurements to be displayed and their format)

FlwVol Yes Yes Yes

First Measurement Show1st FlwVol, Velcty, FlwBVo, FlwMas, Raw

FlwVol Yes Yes Yes

Cycle 4 Cycle Automatic or Manual Auto Yes Yes Yes

Pipe 2 Pipe

Piping 3 Piping

Configuration 4 Config Picklist of 8 configurations

Straight Yes Yes Yes

Upstream Distance 4 UpDist (in pipe diameters) 0 Yes Yes Yes

Bore Size 3 BorSch Picklist of 8 choices Sched 40 Yes Yes Yes

Tags 2 Tags

HART Description 3 HrtDes (16 characters maximum)

HART Description

Yes Yes Yes

HART Tag 3 HrtTag (8 characters maximum) HART Tag Yes Yes Yes

HART Message 32 characters maximum HART Message

No Yes Yes

Flowtube 2NewTube

Model Number 3 Model (16 characters maximum)

84F-T02S1SSTJF

Yes Yes Yes

Custom Design 3 Special

Flowtube Diameter 4 TubDia Flowtube diameter in meters

0.0491998 Yes Yes Yes

Coef of Expansion 4 TubAlp (in m/m/°K) 1.7262e-5 Yes Yes Yes

LFCI User Factor 4 LfUFac 1.0 Yes Yes Yes

Reference Number 3 Ref No (16 characters maximum)

123456789abcdefg

Yes Yes Yes

K-Reference 3 K Ref

K-Factor Unit 4 K EGU p/l, p/ft3 p/ft3 Yes Yes Yes


ParameterParameter


Configurable with

Integral Indicator

HART Comm.

PC-BasedConfig.

13


Reference K-Factor 4 K Ref (from flowmeter tag) 258 Yes Yes Yes

Password 2 Passwd

Password to reset Net and Pulse Totalizer

3 LoPwd (4 characters) (4 spaces) Yes No No

Password for all functions

3 HiPwd (4 characters) (4 spaces) Yes No No


ParameterParameter


Configurable with

Integral Indicator

HART Comm.

PC-BasedConfig.

14

2. Installation

Fundamental Installation RequirementsThese flowmeters must be installed by trained personnel to meet all applicable local installation regulations, such as hazardous location requirements, electrical wiring codes, and mechanical piping codes.

This chapter outlines recommendations that provide the highest level of flowmeter performance for your process.

UnpackingYour 84 Series Vortex Flowmeter is built to be durable, but it is part of a calibrated precision system and should be handled as such.

NOTE84W Flowmeters may (depending on pressure rating of flanges with which they are used) have a set of centering spacers included. Do not discard these centering spacers. They must be used to install the flowmeter properly.

Flowmeters with remote-mounted electronics have a cable connecting the flowmeter junction box and electronics housing. Do not allow the weight of either the flowmeter body or electronics housing to be supported by the remote cable.

Remove the flowmeter body from the shipping carton using care to avoid dropping or otherwise subjecting it to impact, particularly at the flange or wafer faces. Never put anything through the flowmeter body for lifting purposes as damage to the shedder bar may occur.

After removing the flowmeter body from its shipping carton, inspect it for visible damage. If any damage is observed, notify the carrier immediately and request an inspection report. Obtain a signed copy of the report from the carrier. The calibration certificate and any other documentation shipped with the meter should be separated from the packing material and held for future reference. Re-install any flange covers or protective material to safeguard the meter until it is installed.

Packing material should be disposed of in accordance with local regulations. All packing material is nonhazardous and is generally acceptable to landfills.

Flowmeter IdentificationBefore installing your flowmeter, check its data plate to assure that it is correct for your application. Specifications such as maximum ambient temperature, process temperature, and working pressure are given on the data plate. The model code is also stamped on the data plate as shown in Figure 8 and is digitally readable from the configuration menu. On flowmeters with remotely mounted electronics, an additional data plate on the flowtube junction box (see Figure 9) shows the Model Code and electrical safety data. For interpretation of the Model Code, refer to PL 008-714.

15

MI 019-202 – April 2010 2. Installation

Electrical certification information is located on the right end of the data plate.

The software version of your device can be found in View mode as 2 SW Rev.

Figure 8. Sample Flowmeter Data Plate

Figure 9. Sample Junction Box Data Plate

Mechanical InstallationBoth the flanged and wafer body flowmeters are offered in two mounting arrangements: (1) integral, and (2) remote (electronics housing separate from the flowmeter body). The following

MODEL CODESERIAL NO.

PLANT OF MANUFACTUREAND DATE

CALIBRATIONK-FACTOR

2A0704720 PSI24 V dc nom., 22 mA max.

176°F (80°C) 800°F258 9.11

SUPPLY VOLTAGE

MAXIMUM

PRESSUREWORKING

(38°C)

A

MAX AMBIENT TEMP

SUPPLY

MAXIMUMPROCESSTEMPERATURE

84F-T02S1SRTJF123456789S/N

16

2. Installation MI 019-202 – April 2010

sections deal with both the integrally and remotely mounted electronics flowmeter arrangements. The installation guidelines given below are also summarized for your convenience in B0800AJ, Ensuring Premium Performance with Foxboro 84 Series Intelligent Vortex Flowmeters.

DimensionsFor overall dimensions of the flowmeter, refer to the appropriate dimensional print listed in “Reference Documents” on page 1.

Hydrostatic Piping TestingThe 84F Series Vortex Flowmeter is designed to meet the pressure limits of the flange rating specified in the model code.

If your flowmeter is being installed in an application where hydrostatic testing will be preformed, do not remove the sensor from the flowmeter.

Piping Considerations

Effects of Piping on Flowmeter Performance

Flanges

The flange of the adjoining pipe must be the same nominal size and pressure rating as the flowmeter. Flanges with a smooth bore, similar to weld neck flanges, are preferred.

Mating Pipe

Your flowmeter was calibrated at the factory with Schedule 40 piping upstream and downstream of the meter. If your application does not have Schedule 40 pipe, enter the appropriate pipe size during configuration. This assures that the calibration factor and flowmeter accuracy are maintained.

Upstream and Downstream Disturbances

The flowmeter should normally be mounted in a straight, unobstructed pipe with a minimum of 30 pipe diameters upstream of the meter and five pipe diameters downstream. For those installations where this upstream requirement is not met, the type of disturbance must be selected from a picklist during configuration and the distance to the disturbance in pipe diameters entered. This assures that the flowmeter accuracy is maintained.

84F-****xEND CONNECTON AND FLANGE RATING

17


Piping Alignment

The bore of the pipe (flange) and flowmeter must be aligned (see “Mechanically Installing the Flowmeter Body” on page 25), and the flange gaskets installed such that they do not protrude into the flow stream.

If the adjoining piping cannot be properly aligned, it is preferable to make the best possible alignment with the upstream flange. This minimizes the flow disturbance in the flowmeter.

NOTE1. Flowmeters mounted near pump discharge or suction lines may be exposed to

oscillatory flow that may affect vortex shedding or product pipe vibration. Also, flowmeters mounted near the discharge of a liquid positive displacement pump or near oscillating control valves may experience severe flow fluctuations that could damage the sensor. To avoid these adverse situations, install the meter at least 20 feet or 40 pipe diameters, whichever is larger, from the disturbance in question.

2. Good piping practice requires that the internal surface of the pipe shall be free from mill scale, pits, holes, reaming scores, rifling, bumps, or other irregularities for at least four pipe diameters upstream and two pipe diameters downstream of the meter.

Process Temperature

Your flowmeter was calibrated at 75°F (24°C). If your process temperature is different, enter the appropriate process operating temperature during configuration. Your flowmeter automatically adjusts the calibration factor to account for thermal expansion of the metals due to process temperatures that are different than the reference calibration temperature.

Pipe Position

Piping should be planned to maintain full pipe conditions at the flowmeter. When flow is moving with gravity, elevate the downstream pipe length above the meter installation level to maintain a full pipeline.

Mounting Position

For optimal performance, the mounting locations of the sensor and integral electronics relative to the piping must be considered. Factors that influence this decision include process fluid type, ambient temperature, and vibration. Mount the meter in accordance with the installation guidelines for various process fluids described below. Also see Table 5.

Liquid InstallationsFor liquid flow installations, it is recommended that the meter be mounted upstream at least 5 pipe diameters from the control valve. In vertical installations, the meter should be mounted in the upward flowing leg. This helps to maintain a full pipe and ensures that there is sufficient back pressure to prevent flashing or cavitation.

For liquid installations with occasional gas pockets or bubble formation, install piping as recommended in Figure 10 so as to not trap the gas pockets or bubbles inside the flowmeter.

18


Figure 10. Piping Arrangements

For a clean liquid, the electronics housing can be mounted above or below the flowmeter body. Care should be taken so that entrapped air does not accumulate in the sensor cavity. A meter used on liquid should be mounted upstream from a control valve. Flowmeters can also be mounted with the electronics housing positioned to the side. This ensures escape of entrapped air.

Gas InstallationsFor gas flow installations, several choices for flowmeter location should be considered. For maximum rangeability, locate the flowmeter 30 or more pipe diameters downstream from a control valve. This ensures maximum velocity at the flowmeter and produces the most efficient signal from the sensor. This is especially recommended when several flowmeters/control valves are coming off a common header or pipe.

When the flow is more stable, the flowmeter can be mounted a minimum of 5 pipe diameters upstream of the control valve. Pressure fluctuations often are lower on the upstream side of a control valve flow than on the downstream side. This is recommended when a pressure sensor is used with a flowmeter to provide inputs to a flow computer.

On gas flow installations, avoid piping conditions that create standing pockets of liquids inside the meter. The best approach is to install the meter in a vertical line with flow in the upwards direction.

CAUTION!!!For condensate gas applications, take precautions to avoid any trapped condensate that can cause a “water hammer” during startup. If condensate cannot be drained, open the valve slowly, allowing any trapped condensate to travel downstream through the flowmeter at low velocity so that no damage occurs.

BADBAD

GOOD GOOD GOOD

PIPENOTFULL

BAD

GOOD

19


Figure 11. Piping for Gas Applications

When the process fluid is gas, the electronics housing can be above or below the flowmeter body. The normal recommended position of the electronics housing is above the flowmeter body.

Steam InstallationsFor steam control installations, it is recommended that the flowmeter be mounted 30 pipe diameters or more downstream of the control valve. This is particularly useful when measuring saturated steam to ensure that a minimum amount of condensate is present at the flowmeter.

CAUTION!!!Take precautions to avoid any trapped condensate that can cause a “water hammer” during startup. If condensate cannot be drained, open the valve slowly, allowing any trapped condensate to travel downstream through the flowmeter at low velocity so that no damage occurs.

Saturated SteamWhen the process fluid is saturated steam, the electronics housing should be below the flowmeter body, so that the sensor cavity remains filled when condensate is present. Filling the sensor cavity with condensate results in a less noisy measurement caused by any flashing occurring in the flowmeter due to pressure drop.

Figure 12. Piping for Saturated Steam Applications

Superheated SteamWhen the process fluid is superheated steam, the electronics housing may be above or below the flowmeter body. The flowmeter should be insulated to maintain superheat conditions inside the flowmeter as well as insulating the electronics from heat. Assure that the electronics temperature does not exceed 80°C (176°F) under all flow and environmental conditions.

BAD

GOODGOOD

STANDINGPOCKET OFLIQUID INFLOWMETER

SATURATED STEAM

20


InsulationThe flowtube may be insulated up to the interface between the bonnet pad and the bonnet. No insulation is allowed beyond the bonnet pad. It is particularly important to insulate the flowtube on applications for superheated steam.

Figure 13. Insulation

VibrationThe vortex shedder axis should be oriented to reduce or, in some cases, virtually eliminate vibration influence. Position the flowmeter so that the sensor axis is perpendicular to the direction of the vibration. See Figure 14.

Figure 14. Sensor Mounting to Minimize Effect of Vibration

BONNET

INSULATION

BONNET PAD

VIBRATION

VIBRATION

SENSORAXIS

SENSORAXIS

Not Good

Good

21


Ambient Temperature Limitations / ConsiderationsThe temperature limits of the electronics housing is -40 to +80°C (-40°F to +176°F). When installing the flowmeter, ambient temperature and proximity to other heat sources must be considered. For extended high temperature applications, this may require positioning the electronics housing to the side or bottom and/or piping insulation to assure the temperature limit is not exceeded. The maximum temperature rating of 80°C is an electrical safety agency requirement for all FM, CSA, IECEx, and ATEX certifications.

In installations where these agency certifications do not apply and ambient temperature limitations are not achievable, remotely mounting the electronics away from the process piping (to a lower temperature area) is recommended. In this configuration, only the preamplifier is in close proximity to the flowmeter and the preamplifier is rated for a maximum temperature of 105°C (221°F).

22


(1)Possibility of temporary startup error due to trapped air.

(2)Requires adequate insulation.

(3)Best choice when errors due to startup can not be tolerated.

(4)Recommended only for clean fluids.

(5)Not recommended for liquids with isolation valve.

(6)Preferred for liquids with isolation valve.

(7)Not preferred; must maintain full pipe with no voids in fluid.

Table 5. Mounting Arrangements

Flowmeter Orientation for Single (Shown) or Dual Measurement Flowmeter Liquid Gas

SaturatedSteam

SuperheatedSteam

Housing above and Isolation valve is not used

Yes (1) Yes No Yes (2)

Housing above and isolation valve is used

No (5) Yes No Yes (2)

Housing below pipe Yes (3, 4, 6)

Yes (4) Yes Yes (2)

Housing to side of pipe Yes Yes No Yes (2)

Housing to side and below pipe


Vertical pipe, flow upward Yes Yes No Yes (2)

Vertical pipe, flow downward


23


Meter ServicingWhen you install the meter, consider meter repair. The meter should be accessible for servicing. For installations where the flow cannot be interrupted, depressurized, or drained, a flowmeter with an isolation valve is required.

Common practice is to install bypass piping so that the entire meter can be removed for servicing (see Figure 15).

Figure 15. Typical Piping Configuration

30 PIPE DIAMETERSRECOMMENDED.

5 PIPE DIAMETERS

SHUTOFF VALVES

RECOMMENDED

24


Location of Pressure and Temperature TapsFor pressure and/or temperature compensated flow measurement applications, locate the pressure and temperature taps as follows:

NOTEThe inside of the pipe at the pressure and temperature taps must be free of burrs and obstructions.

Pressure Taps -- For density measurement (when required), locate the tap 3-1/2 to 4-1/2 pipe diameters downstream of the flowmeter. See Figure 16.

Figure 16. Pressure and Temperature Tap Locations

NOTE1. On a gas flow installation, the pressure tap should be located on the top of the

pipe.

2. On a liquid installation, the pressure tap (if required) should be located on the side of the pipe.

3. On a steam installation, the pressure tap should be located on the top when the pressure measuring device (typically a pressure transmitter) is above the pipeline, and on the side when the measuring device is below the pipeline.

4. With vertical piping, the pressure tap can be located anywhere around the circumference of the pipeline.

Temperature Taps -- For temperature measurement (when required), locate the tap 5 to 6 pipe diameters downstream of the flowmeter. To reduce flow disturbance, use the smallest possible probe. See Figure 16.

Mechanically Installing the Flowmeter BodyNOTE

If the electronics are mounted remotely, mount the flowmeter body so that the junction box is serviceable.

PRESSURE TAP

TEMPERATURE TAPDIRECTION OF FLOW 5 - 6 PDs

(3.5 - 4.5 PDs)

25


84F – Flanged Body

1. Gaskets are required and must be supplied by the user. Select a gasket material suitable for the process.

2. Insert gaskets between the body of the flowmeter and adjacent flanges. See Figure 17. Position the gaskets so that the ID of each gasket is centered on the ID of the flowmeter and adjacent piping.

CAUTION!!!Verify that the ID of the gaskets is larger than that of the flowtube bore and pipe and that the gaskets do not protrude into the flowtube entrance or exit. Protrusion into the flowstream has an adverse effect on performance.

CAUTION!!!Gaskets do not prevent flanges from being wetted by process fluids.

NOTEWhen you install new flanges in the process piping and use the meter as a gauge to set the flanges, protect the inside diameter of the flowmeter from weld splatter. Install a solid sheet of gasketing at each end of the meter during welding. Remove this sheet and install the flange gaskets after welding. Remove any splatter in either the pipe or the meter as it could affect flowmeter accuracy.

Figure 17. 84F Flowmeter Installation

3. Visually inspect for concentricity (centering and alignment) of mating flanges.

4. Tighten bolts in accordance with conventional flange bolt tightening practice (that is, incremental and alternate tightening of bolts).

84W – Wafer BodyFor optimal performance, the wafer body flowmeter should be centered with respect to the adjoining pipe. Normally, this requires the use of centering fixtures that are supplied with the meter.

NOTECentering fixtures are not required for meters with ANSI Class 150 flanges.

GASKET

GASKET

FLOWMETER

26


1. See Figure 18. Insert the first stud through the downstream flange at one of the lower

holes, through the two hex-nut spacers, and then through the upstream flange. Place the nuts on both ends of the stud, but do not tighten.

2. Using the remaining hex-nut spacers, repeat Step 1 at the lower hole adjacent to the first.

3. Set the flowmeter between the flanges. Then, rotate spacers to the thickness that centers the meter.

NOTEBy rotating the hex-nut spacers to the correct thickness, you can center the meter to any type of flange.

4. Gaskets are required and must be supplied by the user. Select a gasket material suitable for the process fluid.

5. Insert gaskets between the body of the flowmeter and adjacent flanges. Position the gaskets so that the ID of each gasket is centered on the ID of the flowmeter and adjacent piping.

CAUTION!!!Verify that the ID of the gaskets is larger than that of the flowtube bore and pipe and that the gaskets do not protrude into the meter entrance or exit. Protrusion into the flowstream has an adverse effect on performance.

NOTEIf welding the flanges to the process piping is required, protect the flowmeter from weld splatter, which could affect flowmeter accuracy. A solid sheet of gasketing should be installed at each end of the meter during welding. Remove this sheet and install the flange gaskets after welding.

6. Visually inspect for concentricity (centering and alignment) of mating flanges.

7. Install the rest of the studs and nuts and tighten the nuts in accordance with conventional flange bolt tightening practice (that is, incremental and alternate tightening of bolts).

NOTEIf the adjoining flanges are misaligned, align the wafer body flowmeter with the upstream flange.

27


Figure 18. 84W Flowmeter Centering (using Spacers)

Mounting the Remote Electronics HousingThe purpose of the remote electronics housing is to allow for separation of the flowmeter body and the electronics.

A flowmeter with remote electronics consists of:

♦ An electronics housing mounted to a pipe or wall mounting bracket with up to 15 m (50 ft) of interconnecting cable attached.

♦ A flowmeter body with junction box.

1/2 NPT or M20 conduit connections are provided on both the housing and the junction box.

The remote electronics housing can be mounted to a vertical or horizontal DN 50 or 2-in pipe using the mounting bracket and U-bolt supplied. To mount the housing to a horizontal pipe, turn the U-bolt 90egres from the position shown in Figure 19.

The housing can be surface mounted by securing the mounting bracket to a wall using the bracket mounting holes. It may be easier to secure the mounting bracket to the wall without the housing attached. To do this, use the following procedure:

1. Remove the jam nut under the bracket.

2. Raise the housing until you can slide the cable through the cutout in the bracket.

3. Lay the housing aside and secure the mounting bracket to the wall.

4. Reverse steps 2 and 1.

FLOWMETER

GASKET

GASKET

HEX NUT ALIGNMENT DEVICE*

*NOT REQUIRED WITH ANSI CLASS 150 FLANGES; THE FLOWMETER IS CENTERED BY THE BOLTS ALONE

2 HEX NUT SPACERSPER SIDE*

28


Figure 19. Mounting the Remote Electronics Housing

Cover LocksElectronic housing cover locks, shown in Figure 20, are provided as standard with certain agency certifications. To lock the covers, unscrew the locking pin until approximately 6 mm (0.25 in) shows, lining up the hole in the pin with the hole in the housing. Insert the seal wire through the two holes, slide the seal onto the wire ends and crimp the seal.

Figure 20. Cover Locks

Positioning the DisplayThe display (optional in some models) can be rotated within the housing to any of four positions at 90° increments. To do this, loosen the two captive screws, turn the display to the desired position, and retighten the screws.

CAUTION!!!1. Do not turn the display more than 180° in any direction. Doing so could damage its connecting cable.

FIELDTER

MIN

ALS

CABLE TOJUNCTIONBOX

JAM NUT

HOUSING

MOUNTINGBRACKET

U-BOLT

COVER LOCK (2) (IF PRESENT)

29


2. Carefully fold the ribbon cable in the space between display and the electronic module so that it is not pinched. The display molding should rest firmly against the module molding before tightening the screws.

Setting the Write Protect JumperYour transmitter has write protection capability which meets the security requirements of ISA-S84.01-1986 for use in safety shutdown systems. This means that the local display and remote electronics can be prevented from writing to the electronics. Write protection is set by moving a jumper that is located in the electronics compartment behind the display. To activate write protection, remove the display and remove the jumper or place it in the ‘protect’ position. In the ‘write’ position, writing to certain functions can be limited by password protection. See “Password” on page 46.

Figure 21. Write Protect Jumper

Positioning the HousingThe flowmeter housing (topworks) can be rotated up to one full turn in the counterclockwise direction when viewed from above for optimum access to adjustments, display, or conduit connections. Housings have either an anti-rotation screw or a retention clip that prevent the housing from being rotated beyond a safe depth of housing/sensor thread engagement.

JUMPER INPROTECTPOSITION

JUMPER INWRITE

POSITION

WRITE PROTECTION PINS

30


Figure 22. Housing Screw or Clip Location

Electrical InstallationThis section describes procedures for installing wiring, conduit, and ground connections for both integral and remote mounted flowmeters and for preparing remote signal cables for interconnection.

NOTEThe wiring installation must be in accordance with local or national regulations applicable to the specific site and classification of the area.

Integrally Mounted ElectronicsA flowmeter with a integrally mounted electronics requires only power and output signal wiring. To complete installation, refer to “Field Termination Wiring” on page 34.

Remotely Mounted ElectronicsTo use the flowmeter as shipped with the cable attached at both ends, mount the electronics housing and flowmeter body within the limits of the cable length.

If the cable must be disconnected (to shorten the cable, run the cable through conduit, or for some other reason), you must disconnect the cable at the flowmeter (junction box) end. You cannot disconnect the cable at the electronics housing end because it has been epoxied into the metal connector. It is labeled “Factory Sealed / Electronics End / Do Not Remove.”

Preparing the Remote Signal CableIf the cable must be shortened or reterminated, the flowmeter (junction box) end of the cable must be prepared per the instructions in Table 6.

ANTI-ROTATION SCREWOR RETENTION CLIP

RETENTION CLIP

CUP

HOUSING

CLIP

31


Table 6. Preparation of Remote Signal Cable (Junction Box End)

1. Insert the cable into the knurled nut and rubber grommet. Then remove the outer insulation to the dimen-sion shown. Do not damage the copper braid.

2. Cut the copper braid 1 inch from the end of the outer insulation.

3. Insert the cable into the fitting until the cable is bottomed out inside the fitting. Rotate the fitting one or two turns to pack the braid into place. Remove the cable and examine the packed braid. If there are still strands of braid that have not packed, push them back by hand and reinsert the cable into the fitting. Remove the cable and examine the braid. It should be compressed to a length of approximately 3/8 to 1/2 inch.

4. Remove the outer clear wrapping and the metalized mylar film to the end of the packed braid. This exposes the inner drain wire. The inner clear wrapping and filler mate-rial are still in place.

5. Make sure that the drain wire is not in contact with the outer braid. Then use an ohm meter to verify that there is no electrical connection between the drain wire and the braid over the entire length of the cable. This step also verifies that the other end (electronics end) of the cable has been properly dressed and that there is no damage or defects in the cable.

8.5±1/8"

1"

Copper braidOuter Clear wrpping

Metalized mylar film

FittingCompressed copper braid

Rubber grommet

Note:Fitting is connected to junction box (not shown)

3/8" to 1/2" Outer Clear wrpping

Metalized mylar film

Drain wire

Inner Clear wrpping

32


Connecting the Remote Signal CableAfter the cable end has been prepared, connect the cable to the junction box. See Figure 23.

1. Insert the cable into the fitting, making sure that the cable has bottomed out in the fitting.

2. Slide the rubber grommet into the fitting.

3. Screw the knurled nut into place, clamping the rubber grommet against the assembly. Hand tighten with moderate force to assure a water tight connection.

4. Dress the wires in the junction box as shown.

6. Fold the drain wire back onto the packed wire braid and wrap it around one full turn. Then cut off the remainder of the drain wire.

7. Cut back the inner clear wrapping and the filler to 1/2 to 5/8 inch from the end of the outer insulation.

8. Cut an 1/2 inch long piece of shrink wrap and position it so that half the wrap covers the inner clear wrap-ping/filler and half covers the exposed pair of twisted wires. Apply heat to the shrink wrap. Note: A 1/2 inch wide piece of elec-trical tape can be used in place of the shrink wrap.

9. Strip the ends of the twisted pair 1/4 inch.

Table 6. Preparation of Remote Signal Cable (Junction Box End) (Continued)

Drain wire folded back, wrapped once around and trimmed

Twisted pair

1/2" to 5/8"

1/2"Knurled nut

Shrink wrap orelectrical tape

1/4"

33


Figure 23. Connection of Remote Signal Cable (Junction Box End)

Installation with ConduitThe remote signal cable is shipped with the cable attached at both ends. To run the cable through conduit, the -T option must have been purchased. This option facilitates a standard 1/2 NPT conduit connection at both the housing end and the flowmeter end.

1. Disconnect the cable at the flowmeter (junction box) end.

2. Slide the remote conduit adapter (part number K0149LE), longer end first, up the cable and attach it at the housing end.

3. Slide the conduit and fittings over the cable.

4. Slide a second remote conduit adapter, shorter end first, onto the cable and attach it at the junction box end.

Explosionproof / Flameproof CertificationsThe remote cable provides an explosionproof / flameproof connection at the electronics end. Explosionproof connections beyond this point are not required.

Field Termination WiringThe installation and wiring of your flowmeter must conform to local code requirements. Also, for FM installations, refer to MI 019-177; for ATEX and IECEx installations, refer to MI 019-179.

NOTEInvensys recommends the use of transient/surge protection in installations prone to high levels of electrical transients and surges.

Knurled nut and rubber grommet

34


Conduit / Cable Gland ConnectionsThe electronics housing has two conduit/cable gland connections to allow access from either side of the housing. These connections are 1/2 NPT or M20 threads per your order. Make sure to use the correct threaded devices when making these connections. The type of thread can be verified by viewing the eighth character after the dash in the model code on the data plate. The letters T or R indicate a 1/2 NPT thread; V or W, an M20 thread.

The housing comes with a safety-agency approved threaded metal plug in one of the conduit holes and a plastic plug in the other. After the conduit or cable gland is connected, plug the unused hole with the metal plug. To maintain specified explosionproof and dust-ignitionproof protection, plug must be engaged a minimum of five full threads for 1/2 NPT connections; seven full threads for M20 connections.

Accessing Flowmeter Field TerminalsFor access to the field terminals, remove the cover from the field terminals compartment as shown in Figure 24. Note that the embossed letters FIELD TERMINALS identify the proper compartment.

Figure 24. Accessing Field Terminals

84*-*******xELECTRONICS HOUSING CONDUIT CONNECTIONS

EXTERNAL

REMOVE COVER TO ACCESS WIRING TERMINALS.

1/2 NPT OR M20 CONDUIT CONNECTION FORCUSTOMER WIRING. ONE ON OPPOSITE SIDE ALSO. PLUG UNUSED OPENING WITH THE METAL PLUGPROVIDED (OR EQUIVALENT).

GROUND

35


Figure 25. Identification of Field Terminals

Wiring the Flowmeter to a Control LoopNOTE

To use a 4-20 mA output signal, your flowmeter must be configured for 4-20 mA.

When wiring a flowmeter with 4 to 20 mA output signal, the supply voltage and loop load must be within specified limits. The supply output load vs. voltage relationship is shown in Figure 26.

Any combination of supply voltage and loop load resistance in the shaded area can be used. To determine the loop load resistance (flowmeter output load), add the series resistance of each component in the loop, excluding the flowmeter. The power supply must be capable of supplying 22 mA of loop current.

+PULSE

4 TO 20 mASIGNALCONNECTIONS

INTERNAL GROUND SCREW

PULSESIGNALCONNECTIONS(84F-T AND 84W-T ONLY)

PHYSICAL EARTH GROUNDREQ’D FOR EXPLOSIONPROOF(FLAMEPROOF) CERTIFICATIONS

+

–

36


Figure 26. Supply Voltage and Loop Load

Examples:

1. For a loop load resistance of 300 Ω, the supply voltage can be any value from 19.1 to 30 V dc.

2. For a supply voltage of 24 V dc, the loop load resistance can be any value from 250 to 520 Ω (zero to 520 Ω without a HART Communicator or PC-Based Configurator connected to the flowmeter).

To wire one or more flowmeters to a power supply, proceed with the following steps.

1. Remove the cover from the field terminals compartment.

2. Run signal wires (0.50 mm2 or 20 AWG, typical) through one of the flowmeter conduit connections. Use twisted pair to protect the 4 to 20 mA output and/or remote communications from electrical noise. Maximum recommended length for signal wires is 1800 m (6000 ft)

NOTEDo not run flowmeter wires in same conduit as mains (ac power) wires.

3. If shielded cable is used, ground the shield at the negative terminal of the power supply. Do not ground the shield at the flowmeter.

4. Plug the unused conduit opening with the 1/2 NPT or M20 metal plug provided (or equivalent). To maintain specified explosionproof and dust-ignitionproof protection, plug must be engaged a minimum of five full threads for 1/2 NPT connections; seven full threads for M20 connections.

5. The flowmeter is equipped with an internal and external ground connection. Connect a ground wire to either terminal in accordance with local practice.

NOTE:

THAT A PC-BASED CONFIGURATOR OR HART COMMUNICATOR IS NOT CONNECTED TO IT.CONNECTING A PC-BASED CONFIGURATOR OR HART COMMUNICATOR WHILE OPERATING BELOW A 250 Ω LOAD MAY CAUSE OUTPUT DISTURBANCE AND/OR COMMUNICATION

THE FLOWMETER FUNCTIONS WITH AN OUTPUT LOAD LESS THAN 250 Ω PROVIDED

1400

1200

1000

800

600

400

200

0

OU

TP

UT

LO

AD

, Ω

250

15 16 18 20 22 24 26 28 30 32 34 36 38 40 42

SUPPLY VOLTAGE, V dc

SEE NOTE BELOW

30 V MAXIMUM FORINTRINSICALLY

SAFE UNITS

MINIMUM LOADWITH

CONFIGURATOROR

COMMUNICATOR

227.5 Ω @ 17.7 V

PROBLEMS.

37


CAUTION!!!

If the loop is grounded, it is preferable to do so at the negative terminal of the dc power supply. To avoid errors resulting from earth loops or the possibility of short-circuiting groups of instruments in a loop, there should be only one earth in a loop.

6. Connect the power supply and receiver loop wires to the “+” and “–” terminal connections.

7. Connect receivers (such as controllers, recorders, indicators) in series with power supply and flowmeter as shown in Figure 27.

8. Install the cover onto the flowmeter. Turn the cover to seat the O-Ring into the housing and continue to hand tighten until the cover contacts the housing metal-to-metal. If cover locks are present, refer to “Cover Locks” on page 29.

9. If wiring additional flowmeters to the same power supply, repeat Steps 1 through 8 for each additional flowmeter.

10. A HART Communicator or PC-based Configurator can be connected in the loop between the flowmeter and the power supply as shown in Figure 27. Note that a minimum of 250 Ω must separate the power supply from the HART Communicator or PC-Based Configurator.

Figure 27. Loop Wiring 4 to 20 mA Output Flowmeters

(d) THERE MUST BE AT LEAST 250 Ω TOTAL RESISTANCE BETWEEN THE PC-BASED CONFIGURATOR

(d)

OR THE HART COMMUNICATOR AND THE POWER SUPPLY.

HART COMMUNICATOR

+PULSE

SUPPLYRECEIVER

++ – –

POWER

1/2 NPT or M20 CONDUITCONNECTION (2 PLACES)

SHIELDED WIRE OPTIONAL(b)

GROUND OPTIONAL(a)

EXTERNAL

TERMINAL(c)GROUND

INTERNALGROUNDTERMINAL(c)

(a) GROUNDING THE LOOP AT THE NEGATIVE TERMINAL OF THE POWER SUPPLY IS RECOMMENDED BUT NOT REQUIRED.(b) IF SHIELDED WIRE IS USED, TERMINATE THE SHIELD AT THE NEGATIVE TERMINAL OF THE POWER SUPPLY.(c) THE TRANSMITTER IS EQUIPPED WITH AN INTERNAL AND EXTERNAL GROUND CONNECTION. CONNECT A GROUND WIRE TO EITHER TERMINAL IN ACCORDANCE WITH LOCAL PRACTICE.

OR PC-BASED CONFIGURATOR

+

–

PE GROUND (e)

(e) REQUIRED FOR EXPLOSIONPROOF (FLAMEPROOF) APPLICATIONS

38


Multidrop Communication“Multidropping” refers to the connection of several flowmeters to a single communications transmission line. Communications between the host computer and the flowmeters takes place digitally with the analog output of the flowmeter deactivated. With the HART communications protocol, up to 15 flowmeters can be connected on a single twisted pair of wires or over leased telephone lines.

The application of a multidrop installation requires consideration of the update rate necessary from each flowmeter, the combination of flowmeter models, and the length of the transmission line. Multidrop installations are not recommended where Intrinsic Safety is a requirement. Communication with the flowmeters can be accomplished with any HART compatible modem and a host implementing the HART protocol. Each flowmeter is identified by a unique address (1-15) and responds to the commands defined in the HART protocol.

Figure 28 shows a typical multidrop network. Do not use this figure as an installation diagram. Contact the HART Communications Foundation, (512) 794-0369, with specific requirements for multidrop applications.

Figure 28. Typical Multidrop Network

The HART Communicator can operate, configure, and calibrate 84 Series Flowmeters with HART communication protocol in the same way as it can in a standard point-to-point installation.

NOTE84 Series Flowmeters with HART communication protocol are set to poll address 0 (POLLADR 0) at the factory, allowing them to operate in the standard point-to-point manner with a 4 to 20 mA output signal. To activate multidrop communication, the flowmeter address must be changed to a number from 1 to 15. Each flowmeter must be assigned a unique number on each multidrop network. This change deactivates the 4 to 20 mA analog output.

Wiring a Flowmeter With a Pulse OutputTwo separate loops are required when using the pulse output on an 84F-T or 84W-T Flowmeter with the 4 to 20 mA or digital signal. Each loop requires its own power supply. Figure 29 shows the connections with a transistor switch (sinking) counter input with receiver supplied power; Figure 30, with a transistor switch (sinking) counter input and external power supply and pull-up

HOST MODEM

POWERSUPPLY

LOAD

84.-T84.-U

84.-T84.-U

84.-T84.-U

39


resistor; and Figure 31 with a transistor switch (sourcing) counter input and external power supply and pull-up resistor.

Figure 29. Wiring an 84F-T or 84W-T Flowmeter with a Pulse OutputTransistor Switch (sinking) Counter Input with Receiver Supplied Power


(d)


HART COMMUNICATOR

+PULSE

RECEIVER+ –


SHIELDED WIRE(b)

GROUND(a)

EXTERNAL

TERMINAL(c)GROUND




OPTIONAL

OPTIONAL

RECEIVER+ –

SUPPLY

+–

POWER

SHIELDED WIRE(e)

OPTIONAL

(e) IF SHIELDED WIRE IS USED, TERMINATE THE SHIELD AT THE NEGATIVE TERMINAL OF THE RECEIVER.

PE GROUND(f)

(f) REQUIRED FOR EXPLOSIONPROOF (FLAMEPROOF) APPLICATIONS.

+

–

40


Figure 30. Wiring an 84F-T or 84W-T Flowmeter with a Pulse OutputTransistor Switch (sinking) Counter Input with

External Power Supply and Pull-Up Resistor


(d)


HART COMMUNICATOR

+PULSE

SUPPLYRECEIVER

+

+ –

–

POWER


SHIELDED WIRE(b)

GROUND(a)

EXTERNAL

TERMINAL(c)GROUND




OPTIONAL

OPTIONAL

RECEIVER+ –

SUPPLY

+–

POWER

(e) MAXIMUM PULSE OUTPUT CURRENTIS 20 mA. LOAD RESISTOR MUST BE SIZED ACCORDINGLY.

LOAD RESISTOR(e)

SHIELDED WIRE(b)

OPTIONALPE GROUND (f)


+

–

GROUND(a)

OPTIONAL

41


Figure 31. Wiring an 84F-T or 84W-T Flowmeter with a Pulse OutputTransistor Switch (sourcing) Counter Input with

External Power Supply and Pull-Up Resistor


(d)


HART COMMUNICATOR

+PULSE

SUPPLYRECEIVER

+

+ –

–

POWER


SHIELDED WIRE(b)

GROUND(a)

EXTERNAL

TERMINAL(c)GROUND




OPTIONAL

OPTIONAL

RECEIVER+–

SUPPLY

+–

POWER

(e) MAXIMUM PULSE OUTPUT CURRENTIS 20 mA. LOAD RESISTOR MUST BE SIZED ACCORDINGLY.

LOADRESISTOR(e)

PE GROUND (f)

SHIELDED WIRE(b)

OPTIONAL


GROUND(a)

OPTIONAL

42


Wiring a Flowmeter with a Pulse Output (3-Wire)This wiring method is primarily used when using a Model 84 Transmitter to replace an E83FA, E83WA, or Model 83 Transmitter that was wired using a 3-Wire hookup.

For new installations, a 4-Wire hook-up is recommended because the 3-Wire hookup method can interfere with HART communications at certain pulse output frequencies.

Figure 32. Wiring an 84F-T or 84W-T Flowmeter with a Pulse Output Using a 3-Wire Hookup

(e) THERE MUST BE AT LEAST 250 Ω TOTAL RESISTANCE BETWEEN THE PC-BASED CONFIGURATOR

(e)


HART COMMUNICATOR

+PULSE

SUPPLY+ –

POWER

1/2 NPT or M20 CONDUIT

CONNECTION (2 PLACES)

EXTERNAL

TERMINAL(d)GROUND

INTERNALGROUNDTERMINAL(d)

(c) GROUNDING THE LOOP AT THE NEGATIVE TERMINAL OF THE POWER SUPPLY IS RECOMMENDED BUT NOT REQUIRED.(d) THE TRANSMITTER IS EQUIPPED WITH AN INTERNAL AND EXTERNAL GROUND CONNECTION. CONNECT A GROUND WIRE TO EITHER TERMINAL IN ACCORDANCE WITH LOCAL PRACTICE.


COUNTER+ –

PE GROUND (f)


Note (b)

+

–

Note (a)

OPTIONAL

(a) PLACE JUMPER BETWEEN THE TWO NEGATIVE TERMINALS AS SHOWN.(b) ADD A 1200 OHM MINIMUM (1-2 WATT) RESISTOR BETWEEN POWER SUPPLY (+) AND COUNTER (+).

GROUND (c)

43


44

3. Operation Via Local Display

Communication with the 84F-T, 84F-U, 84W-T, and 84W-U Vortex Flowmeters is carried out using the HART Communicator, a PC-Based configurator, or the optional Local Keypad/Display. General instructions for using the HART Communicator can be found in MAN 4250, HART Communicator Product Manual. Instructions for using the HART Communicator with an 84 Series flowmeter is located in Section 4 of this document. Instructions for using the PC-Based configurator are included with the configurator software. Instructions for using the Local Keypad/Display is found in this section.

NOTEFor proper communication with a HART Communicator, the communicator must contain the proper DD for the 84 Vortex Flowmeter. This DD is available from Invensys or any other authorized HART Foundation source.

Local Keypad/Display A local display, as shown in Figure 33 provides local indication of the measurement information, function status, and reference information. The display also provides a means of performing totalizer reset, and full configuration, calibration, and self-test. Operation is accomplished via four multi-function keys.

Figure 33. Local Display

45

MI 019-202 – April 2010 3. Operation Via Local Display

Display Bar IndicatorThe bar indicator at the top of the display indicates the flow measurement, as a percentage of the upper range value.

NOTEIf the flow measurement is out-of-range, the bar indicator blinks.If the flowmeter is off-line, the middle four bars of the bar indicator blink.

PasswordDisplay of information requires no password. However, the ability to access certain functions, (for purposes other than Read Only), such as totalizer, setup, and calibration/testing, may require a user-definable password. The LoPwd allows you to reset the Net Totalizer and Pulse Totalizer. The HiPwd gives you access to all flowmeter functions. In addition, the write protect jumper must be in the ‘write’ position. See “Setting the Write Protect Jumper” on page 30.

NOTEThe flowmeter is shipped from the factory with a blank password. This allows access to all flowmeter functions. If password protection is required, enter a LoPwd and/or HiPwd in Setup mode.

Entering the PasswordThe totalizer, setup, and calibration/test functions may require a password (a 4-character alphanumeric string). Select the TotPul, TotNet, TotGrd, Setup or Cal/Tst top level menu and press Enter at the password prompt. Two brackets surrounding four spaces ([ - - - - ]) then appear on the second line of the display. The cursor, a flashing icon, appears at the first character.

Table 7. Operation of Function Keys

Key Function

Left Arrow (ESC) Moves left in the menu structure.Moves the cursor to the left in a data entry field.Escapes from changes in a picklist menu or data entry.*Answers No.

Right Arrow (ENTER) Moves right in the menu structure.Used to access the data entry edit mode of a parameter.Moves the cursor to the right in a data entry field.Enters and saves the changed menu picklist choices or data entry.* Answers Yes.

Up Arrow (BACK) Moves upward in the menu structure, a picklist menu, or list of characters.

Down Arrow (NEXT) Moves downward in the menu structure, a picklist menu, or list of characters.

*On data entry, repeatedly press the key until the cursor reaches the end of the display.

46

3. Operation Via Local Display MI 019-202 – April 2010

To enter the password, use the Up/Down arrow keys to scroll through the list of acceptable characters. After selecting the desired character, press the Right arrow key to move to the next character. Continue this process until the password is complete. Pressing the Right arrow key once more moves the flashing cursor to the right bracket. Pressing Enter now completes the process. Prior to pressing Enter, you can use the Left/Right arrow keys to move back and forth to modify an incorrect selection.

If you enter an incorrect password, the display indicates Sorry for one second, then goes to Read Only.

You can change a password in the Passwd parameter in the Setup menu.

Activating an Edit, Pick-List, or User Menu BlockTo open a menu block that allows you to edit or select data or to perform a function, move to the menu block and press the Right arrow (Enter) key.

Editing Numbers and StringsEditing any number or string in the menu system is done in the same way as entering the password. The Up/Down arrow keys scroll through a list of acceptable characters for the current position. The Right arrow key moves the cursor to the right. It also accepts the change at the end. The Left arrow key moves the cursor to the left. It also cancels the change at the beginning.

There are three kinds of edit items: signed numbers, unsigned numbers, and strings.

Signed NumbersSigned numbers always have a + or - sign at the beginning. The + can only be changed to –, and vice versa.

Unsigned NumbersFor unsigned numbers, cycle through the digits 0-9, and the decimal point, with the Up/Down arrow keys. When you enter a decimal point in any position, and there is already a decimal point to the left of the cursor, the new decimal point overrides the old one.

StringsCharacters in strings can be changed to any valid character. You can sequence through the list of characters by pressing the Up/Down arrow keys. To enter the change, you must still press Enter from the right side of the data field, after scrolling to the right side with the Right arrow key.

Picking from a ListPicklist items allow you to choose a selection from a flowmeter-supplied list of alternatives. Go to the applicable parameter, and press Enter. The entire bottom line of the display flashes. If you press the Up/Down arrow keys, the display shows the previous or next choice respectively from its list. Pressing Enter accepts the change; pressing Esc returns the previous selection.

47


Configuration Database

Each flowmeter is shipped from the factory with an operating configuration database. However, the flowmeter will not provide an accurate measurement if the configuration does not fit your application. Be sure to check the configuration of our flowmeter prior to start-up.

If the user information is not supplied with the purchase order, the flowmeter is shipped with the following defaults:

These defaults are not recommended for general operation. If no other process information is available, entering Liquid, Gas, or Steam as fluid type in Setup > Fluid > New establishes default data bases as shown in Tables 9, 10, or 11 respectively.

Table 8. Default Database When User Information Not Supplied

Item Metric English

Fluid Type Liquid (water) Liquid (water)

Type of Flow Volume Volume

Measurement Units m3/s gal/min

Flowing Temperature 20°C 68°F

Flowing Density 998.21 kg/m3 62.316 lb/ft3

Absolute Viscosity 1.002 cP 1.002 cP

Upper Range Value Upper Range Limit for Flowmeter Size

Upper Range Limit for Flowmeter Size

Table 9. Default Database for Liquid

Parameter Metric English

Fluid Type Liquid (water) Liquid (water)

Type of Flow Same as present configuration

Measurement Units Same as present configuration

Flowing Temperature 20°C 68°F

Flowing Density 998.21 kg/m3 62.316 lb/ft3

Absolute Viscosity 1.002 cP 1.002 cP

Upper Range Value Upper Range Limit for Flowmeter Size

Upper Range Limit for Flowmeter Size

48


Using the Menu TreeMoving Inside the Menu SystemPressing the Enter key stops the display of measurements and shows the first top level Totalizer menu item, 1 TotPul. Use the Down arrow key to go to 1 TotNet and 1 Tot Grd. At any one of these choices, press Enter to edit your selection. Use the Down arrow key to select Off (turn the totalizer off ), On (turn the totalizer on), or Clear (reset the totalizer) and then press Enter. Press the ESC key to return to Measure mode.

Pressing the Esc key stops the display of measurements, and shows the first item in the rest of the top level menu, 1 Measure. From here, the four keys allow you to move around the menu tree, as indicated by the arrows. Press the Down arrow key to cycle through each of the current menu level items. Press the Right arrow key to move from the current level to its submenu level. Press the Left arrow key to move from the current level to the next higher level.

NOTEEach menu item has its level (1 - 5) displayed at the beginning of the top line.

Table 10. Default Database for Gas


Fluid Type Gas (air) Gas (air)Type of Flow Same as present configurationMeasurement Units Same as present configuration*Flowing Temperature 20°C 68°FFlowing Density 9.546 kg/m3 0.596 lb/ft3

Absolute Viscosity 0.0185 cP 0.0185 cPUpper Range Value Upper Range Limit for

Flowmeter SizeUpper Range Limit for Flowmeter Size

*Liquid units of gallons, liters, imperial gallons, or barrels per unit time are not transferable to gas.

Table 11. Default Database for Steam


Fluid Type Steam SteamType of Flow Same as present configurationMeasurement Units Same as present configuration*Flowing Temperature 178.3°C 352.9°FFlowing Density 4.966 kg/m3 0.310 lb/ft3

Absolute Viscosity 0.015 cP 0.015 cPUpper Range Value Upper Range Limit for

Flowmeter SizeUpper Range Limit for Flowmeter Size

*Liquid units of gallons, liters, imperial gallons, or barrels per unit time are not transferable to steam.

49


Top Level MenuThe three totalizer items in the main menu were discussed immediately above. The remainder of the Top Level menu displays six modes – Measure, Status, View, Setup, and Calibration/Test. You can switch from one to another in sequence by using the Up/Down arrow keys. To enter the second level menu from a particular top level display, press the Right arrow key. To return to the top level from a second level menu item, press the Left arrow key. The level of the first, second, third, fourth, and fifth level menus is indicated by the digit appearing as the first character in Line 1 of the display; a 1 indicates Level 1 (Top Level), a 2 indicates Level 2, and a 3 indicates Level 3, and so forth.

The top level menu is shown in Figure 34.

50


Figure 34. Top Level Modes and Their Basic Functions

NOTECertain parameters may be missing as you step through the menus described in this chapter depending on the configuration of your instrument.

1 TotPul

1 Measure

1 Status

1 Setup

Totals Reset

Measurement

StatusParameters

SetupParameters

FOR DETAILS SEE “TOTALS MODE” ON PAGE 52.

PRESSING EITHER THE ENTER OR ESC KEY MOVES YOU TO THE MEASURE MODE.

FOR DETAILS SEE “STATUS MODE” ON PAGE 52,

THIS MODE PROVIDES THE STATUS OF VARI-OUS PARAMETERS, WRITE PROTECTION, AND ANY DIAGNOSTIC ERRORS.

THIS MODE IS USED TO DISPLAY REFERENCE INFORMATION SUCH AS MODEL, CALIBRA-TOR, AND CALIBRATION DATES. THE TRANS-MITTER SOFTWARE REVISION NUMBER CAN ALSO BE FOUND HERE.

THIS MODE IS USED TO CUSTOMIZE (CONFIG-URE) THE FLOWMETER TO YOUR APPLICA-TION. THIS INCLUDES DEFINING, FLUID, FLOW, TUNING, TOTAL, OUTPUT, PIPING, TAGS, FLOWTUBE, AND PASSWORD PARAMETERS.

FOR DETAILS SEE “SETUP MODE” ON PAGE 54 AND “SETUP MENU TREE” ON PAGE 61.

1 View Parameters

FOR DETAILS SEE“VIEW MODE” ON PAGE 54.

View

Values

THIS MODE ALLOWS RESETTING OF EACH TOTALIZER.

1Cal/TstCalibration/TestParameters

THIS MODE IS USED TO PERFORM SEVERAL CALIBRATION AND TEST FUNCTIONS.

FOR DETAILS SEE “CALIBRATION/TEST MODE” ON PAGE 63

(Measurements) MeasurementTHIS IS THE NORMAL OPERATION MODE. IT DISPLAYS CONFIGURED MEASUREMENTS. IT ALSO INDICATES IF DIAGNOSTIC CONDITIONS EXIST. THE SELECTED DEFAULT MEASURE-MENT IS DISPLAYED WHEN THE TRANSMIT-TER IS TURNED ON.

FOR DETAILS SEE “MEASURE MODE” ON PAGE 52.

Values

ENTER

ESC

1 TotNet

1 TotGrd

51


Measure ModeIn normal operation, the flowmeter displays those measurements specified in Setup mode.If configured for Manual cycle, you can cycle through the measurements manually by using the Up/Down arrow keys. If configured for Auto cycle, the display cycles through the measurements specified. If, while in Auto cycle, you want to see a specific measurement momentarily, advance to that measurement with the Down arrow key. Use the Up arrow key to go to a specific measurement and stay there. You can then resume scanning by pressing the Down arrow key.

Totals ModeTotPul, TotNet, or TotGrd is used to turn a totalizer on, pause the totalizer, or to clear (reset) the total. This is done by pressing the Enter key and selecting On, Paused, or Clear and pressing the Enter key again. Before doing this you may be asked for a password. If so, enter the LoPwd or HiPwd for TotPul and TotNet; enter the HiPwd for TotGrd.

NOTEClearing TotGrd also clears TotPul and TotNet.

Status ModeThe MeaStat sublevel of this mode enables you to view the units, value, and status of system parameters and thus assess the performance of the loop. You can not edit them in this mode. To step through the displays of the parameters, use the Up/Down arrow keys. The Status mode structure diagram is shown in Figure 35.

The WrProt sublevel of this mode shows whether write protection is enabled (Prot) or is disabled (NotProt).

The DiagEr sublevel of this mode shows any diagnostic errors. The display 0000 means no diagnostic errors.

NOTEA new diagnostic condition only appears after a diagnostic is detected while in Measure mode.

52


Figure 35. Status Mode Structure Diagram

1 Status 2 MeaStat

3 mA Out

3 Raw Hz

3 KRef

2 WrProt

2 DiagEr

3 Pulse

3 Velcty

EGU

Value

Status

3 KFlow

3 Reynld

53


View ModeThe View mode enables you to view the identity parameters. You can not edit them in this mode. To step through the list of the following parameters, use the Up and Down arrow keys.

Figure 36. View Mode Structure Diagram

Setup ModeThe Setup mode enables you to configure your flowmeter fluid, flow, tuning, totalizer, output, pipe, tag, flowtube, and password parameters. You can also establish and change your passwords in this mode.

Setup mode can be a passcode protected mode. So after the initial configuration, you may need to enter the HiPwd to make changes in this mode. See “Password” on page 46.

NOTEIf you lose your password, call our Global Client Support Center for assistance.

1 View 2 HrtTag HART TAG

MODEL2 Model

2CalDate

2CalName

2 SW Rev

LAST CALIBRATION DATE

INITIALS OF LAST CALIBRATOR

SOFTWARE REVISION NUMBER

HART ADDRESS2 HartAdr

2 HartMsg

2HartDes

HART MESSAGE

HART DESIGNATION

54


If your transmitter is write protected, the display reads Rd Only if you try to enter Setup mode. In this case, you cannot enter Setup mode to make changes. You can, however, view but not edit the setup.

Upon attempts to enter this mode, you are asked, Loop in Manual? After placing the loop in manual, indicate ‘yes’ with the Enter key. This is also an off-line mode. Analog output is driven to 4 mA, pulse to 0.

The structural diagrams for the Setup mode begin on page 61.

Setting Fluid ParametersThe 2 Fluid section of the Setup mode allows you to configure parameters for fluid type, fluid name (optional), temperature unit, flow temperature, density unit, flow density, base density, viscosity unit, and viscosity.

NOTEIf you are satisfied with the existing fluid parameters, do not enter the 3 New parameter; doing so will reset all the other fluid parameters.

♦ In 3 New, select the fluid as Liquid, Gas, or Steam to get the default data base for that medium. Refer to Tables 9, 10, and 11.Selecting 3 Edit enables you to edit the present fluid configuration.

♦ FldTyp shows the type of fluid presently configured.

♦ In 3 Name, name the particular fluid (optional).

♦ In 3 TmpEGU, select your choice of temperature unit (degF, degC, degR, or degK).

♦ In 3 FlwTmp, enter he flow temperature in the temperature unit specified.

♦ In 3 DenEGU select the density unit from the following picklist: kg/m3, lb/Yd3, lb/gal, oz/in3, lb/ft3, g/cm3, ST/Yd3, LT/Yd3, Custom.If you pick Custom, you must define your custom unit. First, enter a Label for your custom unit using up to eight alphanumeric characters. Then, enter any Offset and a conversion factor (Slope) from kilograms per cubic meter to the custom unit.

♦ In 3 FlwDen, enter the flow density in the density unit specified.

♦ In 3 BasDen, enter the base density in the density unit specified.

♦ LfciEGU shows the units of the low flow cut-in.

♦ Lfci shows the Lfci presently configured.

♦ In 3 VisEGU, select the viscosity unit (cPoise, Poise, cStoke, or PaSec).

♦ In 3 Visc, enter the viscosity in the viscosity unit specified.

Setting Flow ParametersThe 2 Flow section of the Setup mode allows you to configure parameters for flow.

In 3 FlwMap, select VolFlow, BVolFlow, or MassFlow.

In 3 FlwEGU, select the desired unit of flow from the picklist. If you pick Custom, you must define your custom unit. First, enter a Label for your custom units using up to eight

55


alphanumeric characters. Then, enter any offset (Offset) and a conversion factor (Slope) from kilograms per second (kg/s) for mass flow units or cubic meters per second (m3/s) for volume or base volume flow units to the custom units.

Example: The slope for a custom unit of yd3/min would be 78.47704 because 78.47704 yd3/min = 1 m3/s.

In 3 FlwURV, enter the upper range value in the flow unit just specified.

In 3 FlwDmp, select the damping factor from the picklist.

In 3 VelEGU, select the desired velocity unit from the picklist.

Setting Tuning ParametersThe 2Tuning section of the Setup mode allows you to specify several flowmeter options.

♦ In 3AddDrop, configure the pulse compensation (signal conditioning) feature as On or Off.

♦ In 3 RdCorr, configure the Reynolds number correction feature as On or Off.

♦ In 3 LFCI, set the low flow cut-in parameter to the level above which the flowmeter begins to measure flow. Select an output that provides no output under no flow conditions. In 4 FlwEGU, note the flow units in which the setting selections are shown. In 4 Setting, select a setting from the picklist presented.

NOTEThe LFCI can be automatically set by the flowmeter in the Calibration/Test mode.

Setting Totals ParametersThe 2 Total section of the Setup mode allows you to configure each of two totalizers. This is done in 3 TotNet and 3 TotGrd. For each totalizer:

♦ In 4 Map, map the totalizer to Volume, Mass, or BVolume.

♦ In 4 EGU, select the desired unit from the picklist presented.

If you pick Custom, you must define your custom unit. First, enter a Label for your custom units using up to eight alphanumeric characters. Then, enter any offset (Offset) and a conversion factor (Slope) from kilograms (for mass units) or cubic meters (for volume or base volume units) to the custom units.

Example: The slope for a custom unit of a 42 gallon barrel would be 6.2898 because 6.2898 bbl = 1 m3.

Setting Output ParametersThe 2 Output section of the Setup mode allows you to configure the communications, mA output, pulse output, and display parameters.

Communications

There is no need to map the measurements to be displayed in the I/A Series system as they are already defined. The primary measurement is flow rate (volume, base volume, or mass); the

56


secondary measurement is net total; the tertiary measurement is grand total.

In 3 Coms, configure the communications parameters:

♦ In 4PolAddr, specify the poll address from the picklist of numbers from 0 through 15.

♦ In 4Preambl, set the number of preambles between 2 and 20.

mA Output

In 3 Fail, configure the mA output to go fully downscale or upscale upon a failure.

Pulse Output (If pulse output specified)

In 3 Pulse, go to 4 Pulse and select the type of pulse output as Rate, Total, Raw, or Off.If Rate, configure the following:

♦ In 4 Freq, select the upper frequency end point corresponding to the highest frequency generated as 10, 100, or 1000 Hz.

If Total, configure the following:

♦ In 4 Pwidth, select, the pulse width as 0.5, 5, or 50 ms.

♦ In 4 EGU, select the units from the picklist provided.

♦ In 4 U/Pulse, enter the units per pulse.

If Raw, no further action is required.

Display

Under 3Display, configure the display parameters

Under 4 Show, specify whether the reading is to be shown for each of the following measurements and, if shown, the Format (decimal point placement) of the displayed value:

♦ In 5 FlwVol, the volume flow output display.

♦ In 5 TotNet, the net totalizer reading.

♦ In 5 TotGrd, the grand totalizer reading.

In 4 Show1st, select the first measurement to be shown as FlwVol, Velcty, FlwBVo, FlwMas, or Raw.

In 4 Cycle, specify whether the list of measurements configured to be shown are scanned automatically (Auto) or manually (Manual).

Setting Piping ParametersThe 2 Pipe section of the Setup mode allows you to configure the parameters related to piping.

Piping

Under 3 Piping, configure the parameters used by the flowmeter to correct for the effects of upstream piping and disturbances on the Flowing K-Factor as follows:

57


♦ In 4 Config, select the upstream piping configuration from the following picklist (see

Figure ):

♦ Straight♦ 1 EL PAR (1 elbow with shedder parallel to elbow plane)♦ 1 EL PER (1 elbow with shedder perpendicular to elbow plane)♦ 2L0PDPAR (2 elbows with shedder parallel to plane of closest elbow and distance

between elbows is zero pipe diameters)♦ 2L0PDPER (2 elbows with shedder perpendicular to plane of closest elbow and

distance between elbows is zero pipe diameters)♦ 2L5PDPAR (2 elbows with shedder parallel to plane of closest elbow and distance

between elbows is 5 pipe diameters)♦ 2L5PDPER (2 elbows with shedder parallel to plane of closest elbow and distance

between elbows is 5 pipe diameters)♦ Reducer

♦ In 4 UpDist, enter the distance to the first upstream flow disturbance in pipe diameters.

58


Figure 37. Piping Configurations

Pipe Bore

In 3 BorSch, select the pipe bore from the following picklist: Sched 10, Sched 40, Sched 80, PN16, PN40, PN64, PN100, or Sanitary.

Setting Tag ParametersThe 2 Tags section of the Setup mode allows you to configure the following identification parameters:

♦ In 3 HrtDes, enter the device description.

DISTANCEFROM ELBOW

FLOWDIRECTION FLOW

DIRECTION

DISTANCEFROM ELBOW

FLOWDIRECTION

DISTANCEFROM ELBOW

SEPERATIONBETWEENELBOWS

FLOWDIRECTION

DISTANCEFROM ELBOW

SEPERATIONBETWEEN ELBOWS

1 EL PER1 EL PAR

2 L0 PD PER2 L5 PD PER

2 L0 PD PAR2 L5 PD PAR

2 L0 PD PAR X=0 PD2 L5 PD PAR X=5 PD

2 L0 PD PER X=0 PD2 L5 PD PER X=5 PD

X

X

REDUCER

59


♦ In 3 HrtTag, enter an alphanumeric description if desired.

Setting Flowtube ParametersThe 2 NewTube section of the Setup mode allows you to configure the following flowtube parameters:

Model

In 3 Model, enter the model number of the flowtube (16 characters maximum) as found on the flowmeter tag. It is already in the database if the flowtube and electronics were shipped as a unit.

Special Flowtube

If your flowtube was customized to be different from the model number entered, you can override certain descriptions in the model code in 3 Special as follows:

♦ In 4 TubDia, enter the custom flowtube diameter in meters

♦ In 4 TubAlp enter the thermal coefficient of expansion (alpha) in m/m/°K

♦ In 4 LfUFac enter the low flow cut-in user factor.

Reference Number

In 3 Ref No, enter the reference number (serial number) of the flowtube (16 characters maximum) as found on the flowmeter tag. It is already in the database if the flowtube and electronics were shipped as a unit.

K-Factor

In 3 K Ref, enter the k-factor as follows:

♦ In 4 K EGU, select p/l or p/ft3 as the unit of the k-factor.

♦ In 4 K Ref, enter the reference K-factor as found on the flowmeter tag.

Changing the PasswordThe 2 Passwd section of the Setup mode allows you to create or change the passwords.

In 4 LoPwd, enter the new password for access to clear (reset) the net and pulse totalizers.

In 4 HiPwd, enter the new password for access to all modes.

NOTE1. Passwords contain four characters.

2. Use four spaces to configure ‘No Password’.

60


Setup Menu Tree

Figure 38. Setup Menu Tree (1 of 3)

2 Fluid 3 New->

3 TmpEGU

3 DenEGU*

3 FlwDen

3 BasDen

3 VisEGU

3 Visc

3 Name

3 FlwTmp

2 Flow 3 FlwMap

3 FlwEGU*

3 FlwURV

3 VelEGU

2Tuning 3AddDrop

3 LFCI 4 FlwEGU

4 Setting

3 RdCorr

To 2 Total

1 Setup

*If EGU = Custom4 Label

4 Offset

4 Slope3 FlwDmp

Edit ∇

3 FldTyp

3 LfciEGU

3 Lfci

(Read Only)

(Read Only)

(Read Only)

61



2 Output 3 Coms

3 Fail

3 Pulse

4PolAdr

4 Pulse

3 Display

4 Pwidth

4 EGU

5 FloVol

4 Freq

4 U/Pulse

If Rate

If Total

4 Show

4 Show1st

4 Cycle

Pul=Raw

If Raw

5 TotNet

5 TotGrd

2 Pipe

3 BoreSch

4 Config

4 Updist

3 Piping

To 2 Tags

2 Total 3 TotNet

3 TotGrd

4 Map

4 EGU*

4 Map

4 EGU*

4Preambl

62



Calibration/Test ModeThe Calibration/Test mode enables you to:

♦ Set the Low Flow Cut In (LFCI)

♦ Calibrate the 4 and 20 mA output

♦ Self test the flowmeter

♦ Use the flowmeter to test the loop.

The Calibration/Test mode can be a passcode protected mode. So after the initial configuration, you may need to enter the HiPwd to perform the procedures in this mode. See “Password” on page 46.

NOTEIf you lose your password, call our Global Client Support Center for assistance.

The structural diagram for the Calibration/Test mode is shown in Figure 41.

2NewTube 3 Model

3 Ref No

3 Special

3 K Ref

4 TubDia

4 K EGU

4 K Ref

2Passwd 4 LoPwd

4 HiPwd

<-CancelSave->

4 TubAlp

4 LfUFac

2 Tags 3 HrtDes

3 HrtTag

3 Special

63


CalibrationIn 2 Calib, go to 3 SetLFCI to have the flowmeter automatically set the Low Flow Cut-In. In doing this, the flowmeter chooses the lowest level at which no signal is detected over a 20-second time interval. It is important that the flow be zero during this procedure.

NOTEThis procedure may confirm your choice of LFCI setting in “Setting Tuning Parameters” on page 56. However, if it picks a different selection, it overwrites your selection.

In 2 Calib, go to 3 Cal mA to calibrate the 4 and 20 mA output.

♦ The 4Restore parameter restores the factory calibration.

♦ The 4Cal 4mA and 4Cal20mA parameters allow the 4 to 20 mA output of the flowmeter to be calibrated or matched to the calibration of the receiving device to an accuracy of 0.005 mA.

NOTEThe flowmeter has been accurately calibrated at the factory. Recalibration of the output is normally not required, unless it is being adjusted to match the calibration of the receiving device.

♦ In 4CalDate, enter the date of the last calibration if desired.

♦ In 4Initial, enter the initials of the last calibrator if desired.

NOTE

TestIn 2 Test, you can self test the flowmeter and use the flowmeter to test the loop.

Testing the Loop

The flowmeter can also be used as a signal source to check and/or calibrate other instruments in the control loop, such as indicators, controllers, and recorders. To do this, set the mA output (3 Set mA), rate pulse output (3 Set Hz), or digital output (3 SetDig) signals to any value within the range limits of the meter.

Testing the Flowmeter

The self test parameter (3SelfTst) checks the flowmeter operation by injecting, near the front end of the electronics, an internally generated periodic signal of known frequency. The frequency of this signal is in turn measured and checked against the injected signal.

64


Figure 41. Calibration/Test Menu Tree

2 Calib

3 Cal mA

4Cal20mA

4 Cal4mA

4CalDate

1 Cal/Tst

4Initial2 Test

3 Set mA

3 Set Dig

3 Set Hz

SelfTst

<-CANCEL

SAVE->

3 CalLFCI

4 Restore

65


Error Messages

Operation Error MessagesThis section defines error messages that may be displayed and actions that can be taken to correct the error. Some messages appear periodically while seeing a valid flow measurement. This typically occurs when ‘soft’ limits have been exceeded and the flowmeter is warning that a hard limit is approaching.

Configuration Error Messages

Table 12. Operation Error Messages

Message Explanation Corrective Action

Override The flowmeter is being overridden by an external host such as another configurator or control system.

None - This is an awareness message that the flowmeter is being overridden

W: Inputxxxxxxxx

Warning: An input to a specific measurement or calculation has exceeded the normal limit and is in the ‘soft limit’ region. The measurement or calculation is defined on the second line of the message.

1. Check inputted temperature flowing temperature to make sure it is within the temperature limits of the sensor.2. Check the raw frequency to determine if it is out of limits for the flowmeter size.

B: Inputxxxxxxxx

Bad Input: Same as above except the inputs have now exceeded the ‘soft’ limit. This adversely affects all measurements.

Same as above.

W: InputTotal

Warning: The total (pulse, net, or grand) may not be correct due to a momentary loss of power.

Clear the total. Pulse and Net total can be cleared independently. Clearing the grand total clears pulse and net totals also.

FcErrE:0x####

An internal function did not execute successfully.

If this occurs at startup, an invalid configuration exists. Recheck the configuration. If this does not resolve the problem, re-enter the Model.

Table 13. Configuration Error Messages


WrProtct The write protect jumper is in the ‘protect’ position or is missing. The configuration cannot be changed unless the jumper is in the ‘write’ position.

Install or move the write protect jumper to the ‘write’ position. See “Setting the Write Protect Jumper” on page 30.

Cfg ErrMsCode

An incorrect model code has been entered. Enter the correct model code.

66


No PulseHardware

An incorrect model code has been entered. The model code entered was for a flowmeter with a pulse output. The electronics module does not have a pulse output PWB.

Enter the correct model code which begins with 84F-E, 84W-E, 84F-U, or 84W-U.

Bad URVURV=URL

The entered URV has exceeded the URL (meter capacity) of the flowmeter.

Press Enter to change the URV to the value of the URL. Make sure that the entered value for Flowing Density is correct.

Bad URVURV=Min

The entered URV is less than the minimum value allowed for the URV.

Press Enter to change the URV to the minimum value allowed. Make sure that the LFCI setting and the value for Flowing Density is correct. See Note (a).

FcErrE:0x####

An internal function did not execute successfully.

Review the inputs associated with the last menu function. If this does not resolve the problem, re-enter the Model.

(a) The minimum URV value is three times (3x) the LFCI flow rate. For applications where the URV is very low relative to the flowmeter capacity, this error message may appear when this constraint is violated. This could be the result of lowering the URV, increasing the LFCI setting, or decreasing the flowing density (increasing the corresponding LFCI flow rate values).

Table 13. Configuration Error Messages


67


68

4. Operation Via HART Communicator

Online Menu

Figure 42. 84 Vortex Flowmeter Online Menu Tree (1 of 4)

1. Device Setup

2. PV1. Process Variables

2. Diag/Service

3. Basic Setup3. PV AO

4. Detailed Setup

5. Review

1. PV

2. PV % Rnge

3. PV AO4. Net Total4. PV URV

5. LFCI

1. Totals Operations

2. Auto LFCI

3. Self Test4. Loop Test

5. Calibration6. Measurement Status

1. Model Code

2. Set Fluid Defaults

3. K Factor Units4. K Factor

5. PV Map

1. Measuring Elements

2. Flowtube Config

3. Tuning4. Output Config

H

A

B

6. LFCI Index7. PV USL

5. Grand Total

6. Vortex Freq

7. Detail Status

DE

C

6. PV Units*

7. PV URV8. PV Damping

9. Tag

5. Device Info

FG

K

M

J

L

U

*If PV Units = Custom, specify

Custom PV LabelCustom PV Offset

Custom PV Slope

(SV)(TV)

(QV)

69

MI 019-202 – April 2010 4. Operation Via HART Communicator


A

C

D

B

2. Net Total Value3. Net Operations

4. Grand Total Value 5. Grand Operations

1. Set Digital Out2. Set Analog Out

1. D/A Trim2. Scaled D/A Trim

3. Date

1. Flow Velocity

2. Velocity Status

3. K Factor

E2. Device Err Status

3. Device Warn Status

1. Process Variables

2. PV Configuration

3. Total Units4. Process Parameters5. Piping

3. Set Pulse Out

4. K Corrected

5. K Corrected Status

6. AO Status7. AO Value8. Pulse Out

9. Pulse StatusProcess Viscosity

Viscosity Status

H

F 1. Liquid2. Gas

3. Steam

1. p/l

2. p/CuFtG

N

QR

P

1. PV

2. PV % Rnge

3. PV AO4. Net Total

5. Grand Total

6. Vortex Freq

1. PV Map2. PV Units*

3. PV URV4. PV Damping

1. Net Total

2. Grand TotalP

N

1. Net Total Map

2. Net Total Units

1. Grand Total Map

2. Grand Total Units

1. Model Code

2. K Factor Units

3. K Factor4. Serial Number5. Special

J

K 1. Reynolds Correction2. Pulse Add/Drop

3. LFCI

1. Digital Output

2. Analog Output

3. Pulse Output4. HART Output5. O/P Alarm Code

L

6. Local Display

1. Manufacturer

2. Tag

3. Descriptor4. Message5. Date

M

6. Revisions

1. Variable Map

2. Set Digital OutS

T1. Poll Addr

2. Num Req Preams

1. Show2. Primary Display

3. Display Cycle

1. Tube Diameter2. Tube Alpha

3. LFCI Adjust Factor

1. Pulse Operations

1. Error Reason

5. Velocity Units

*If PV Units = Custom, specify

Custom PV LabelCustom PV OffsetCustom PV Slope

70

4. Operation Via HART Communicator MI 019-202 – April 2010


1. Mating Pipe2. Piping Config

3. Upstream Distance4. Custom K Bias

RSchedule 40

Schedule 80

PN16PN40

PN64PN100

Sanitary

Schedule 80

Straight

1 L paral to shed

1 L perp to shed2 L cls paral shed

2 L cls perp shed2 L 5 dia paral

2 L 5 dia perp

Reducer

1. Set Fluid Defaults

2. Fluid Name

3. Temperature Units4. Process Temp

5. Density Units*6. Process Density

7. Base Density

8. Abs Viscosity Unit9. Process Viscosity

Q

1. AO/PV Map

2. AO/PV URV

3. AO/PV LRV4. Set Analog Out5. Calibration

S

1. Pulse Mode

2. PO/PV Map

3. PO/PV URV4. PO/PV LRV5. Pulse Max Freq

T

6. Set Pulse Out

C

1. Off2. Raw

3. Rate4. Total

1. Pulse Mode

2. Pulse Map

3. Pulse Width4. Pulse Total EGU5. Pulse Resolution6. Set Pulse Out

1. Pulse Mode

1. Pulse Mode

If Pulse Mode is ‘Off’

If Pulse Mode is ‘Rate’

If Pulse Mode is ‘Total’

If Pulse Mode ‘Raw’

*If Density Units = Custom, specify

Custom Dens LabelCustom Dens Offset

Custom Dens Slope

Schedule 10

71



U Model Code

Serial Number

K FactorPV USL

PV Min SpanLFCI

PV Units

Net Total Units

Grand Total Units

AO/PV MapAO/PV URV

AO/PV LRVPulse Mode

PO/PV Map*

PO/PV URV*PO/PV LRV*

Pulse Max Freq*

O/P Alarm Code

PV DampPulse Add/Drop

Fluid NameFluid Type

Temperature Units

Process TemperatureDensity Units

Process Density

Base Density

Abs Viscosity UnitsProcess Viscosity

Mating PipePiping Config

Upstream Distance

Custom K BiasManufacturer

Dev ID

TagDescriptor

Message

Date

Universal RevFld Dev Rev

Software RevSoftware Sub-Revision

Hardware Rev

Poll Addr Num Req Preams

TagDescriptor

Message

Date

Universal RevFld Dev Rev

Software RevSoftware Sub-Revision

Hardware Rev

Poll Addr Num Req Preams

Pulse Map**

Pulse Width**Pulse Total EGU**

Pulse Resolution**

Dev ID

* If Pulse mode = Rate** If Pulse Mode = Total

LFCI Index

72


Explanation of Parameters

NOTEThe fast-key path shown is based on a frequently used configuration. If certain parameters are configured off or infrequently used parameters configured on, the fast-key path may be different.

Parameter Fast-Key Path ExplanationAbs Viscosity Unit 1,4,1,4,8 Select the viscosity unit from the picklist provided.Abs Viscosity Units 1,5 Shows the absolute viscosity unit.Analog Output 1,4,4,2 Path to configuring the analog output.AO Status 1,2,6,6 Shows the AO status.AO Value 1,2,6,7 Shows the AO valueAO/PV LRV 1,4,4,2,3

1,5Shows the AO/PV LRV.

AO/PV Map 1,4,4,2,11,5

Shows whether the PV is mapped to Volume Flow, Mass Flow, BVolFlow, or Velocity.

AO/PV URV 1,4,4,2,21,5

Shows the AO/PV URV.

Auto LFCI 1,2,2 Procedure for the flowmeter to automatically set the LFCI.

Base Density 1,4,1,4,7

1,5

In Detailed Setup, enter the base density in the density unit specified. This is only used to calculate the base volumes.In Review, shows the base density.

Basic Setup 1,3 Path to basic setup parameters.Calibration 1,2,5

1,4,4,2,5Path to performing a D/A trim or scaled D/A trim.

Custom K Bias 1,4,1,5,4

1,5

In Detailed Setup, enter the custom K-factor (with sign in percent).In Review, shows the custom K-Factor.

Custom Dens Label 1,4,1,4,5 Enter the label for your custom density unit.Custom Dens Offset 1,4,1,4,5 Enter any offset.Custom Dens Slope 1,4,1,4,5 Enter a conversion factor for the custom density unit.Custom PV Label 1,3,6

1,4,1,2,2Enter the label for your custom PV unit.

Custom PV Offset 1,3,61,4,1,2,2

Enter any offset.

Custom PV Slope 1,3,61,4,1,2,2

Enter a conversion factor for the custom PV unit.

D/A Trim 1,2,5,11,4,4,2,5,1

Procedure to trim the 4 and 20 mA output values of the flowmeter to match the output of a plant standard measurement device.

73


Date 1,2,5,31,4,5,51,4,4,2,5,31,5

In Diag/Service, enter the date of the last calibration.In Detailed Setup, enter the date of the last calibration.

In Review, shows the last calibration date.Density Units 1,4,1,4,5

1,5

In Detailed Setup, select the density unit from the picklist provided.In Review, shows the density units.

Descriptor 1,4,5,3

1,5

In Detailed Setup, enter the descriptor (16 characters maximum).In Review shows the descriptor.

Detailed Setup 1,4 Path to detailed setup parameters.Detail Status 1,2,7 Path to viewing the status of various device parameters.Device Err Status 1,2,7,2 Shows the device error status.Dev ID 1,5 Shows the device identification number.Device Info 1,4,5 Path to configuring the device description parameters.Device Setup Path to all other parameters.Device Warn Status 1,2,7,3 Shows the device warning status.Diag/Service 1,2 Path to status, test, and calibration parameters.Digital Output 1,4,4,1 Path to configuring the digital output.Display Cycle 1,4,4,6,3 Specify whether the list of measurements configured to be

displayed are scanned automatically or manually.Error Reason 1,2,7,1 Shows the error reason code.Fld Dev Rev 1,5 Shows the software version of the vortex flowmeter.Flow Velocity 1,2,6,1 Shows the flow velocity value.Flowtube Configuration 1,4,2 Path to configuring the flowtube parameters.Fluid Name 1,4,1,4,2

1,5In Detailed Setup, enter the name of the fluid.In Review, shows the fluid name.

Fluid Type 1,5 Shows the fluid type.Grand Operations 1,2,1,4 Procedure to start, pause or clear the grand total.Grand Total 1,1,5

1,4,1,1,51,4,1,3,2

In Process Variables, shows the grand total.

In Detailed Setup, path to configuring the grand total mapping and units.

Grand Total Map 1,4,1,3,2,1 Map the Grand Total to Volume, Mass, or BVolume.Grand Total Units 1,4,1,3,2,2

1,5In Detailed Setup, select the grand total units from the picklist provided.In Review, shows the grand total units.

Grand Total Value 1,2,1,3 Shows the grand total value.Hardware Rev 1,5 Shows the vortex flowmeter hardware revision level.HART Output 1,4,4,4 Path to configuring the HART output.K Corrected 1,2,6,4 Shows the K Corrected value.K Corrected Status 1,2,6,5 Shows the K Corrected status

Parameter Fast-Key Path Explanation

74


K Factor 1,2,6,31,3,41,4,2,31,5

In Diag/Service, shows the K-Factor value.In Basic Setup, enter the K-Factor.In Detailed Setup, enter the K-Factor.In Review, shows the K-Factor.

K Factor Units 1,3,31,4,2,2

In Basic Setup, path to selecting the K-Factor unit.In Detailed Setup, path to selecting the K-Factor unit.

LFCI 51,4,3,31,5

In the Main Menu, shows the low flow cut-in value.In Detailed Setup, confirm or change the LFCI.In Review, shows the LFCI.

LFCI Index 61,5

Shows the low flow cut-in picklist number.

LFCI Adjust Factor 1,4,2,5,3 Enter the low flow cut-in user factor.Local Display 1,4,4,6 Path to configuring the local display.Loop Test 1,2,4 Procedure to use the flowmeter as a calibration source to

check other instruments in the loop.Manufacturer 1,4,5,1

1,5Shows the manufacturer as Foxboro.

Mating Pipe 1,4,1,5,1

1,5

In Detailed Setup, select the type of mating pipe from the picklist provided.In Review, shows the type of mating pipe.

Measurement Status 1,2,6 Path to viewing the status of various measurement parameters.

Measuring Elements 1,4,1 Path to configuring the measuring element parameters.Message 1,4,5,4

1,5In Detailed Setup, enter the message (32 characters max).In Review shows the message.

Model Code 1,3,11,4,2,11,5

In Basic Setup, enter the model code.In Detailed Setup, enter the model code.In Review, shows the model code.

Net Operations 1,2,1,2 Procedure to start, pause or clear the net total.Net Total 1,1,4

1,4,1,1,41,4,1,3,1

In Process Variables, shows the net total.In Process Variables, shows the net total.In Detailed Setup, path to configuring the net total mapping and units.

Net Total Map 1,4,1,3,1,1 Map the Net Total to Volume, Mass, or BVolume.Net Total Units 1,4,1,3,1,2

1,5

In Detailed Setup, select the net total units from the picklist provided.In Review, shows the net total units.

Net Total Value 1,2,1,1 Shows the net total value.Num Req Preams 1,4,4,4,2

1,5

In Detailed Setup, configure the number of preambles to be sent in a response message from the flowmeter to the host.In Review, shows the number of preambles.

O/P Alarm Code 1,4,4,5

1,5

In Detailed Setup, configure the output to go fully upscale or downscale if a failure occurs.In Review, shows the O/P Alarm Code.


75


Output Configuration 1,4,4 Path to configuring the output parameters.p/CuFt 1,3,3,2 Sets the K-Factor unit to pulses per cubic foot.p/l 1,3,3,1 Sets the K-Factor unit to pulses per liter.Piping 1,4,1,5 Path to configuring the piping parameters.Piping Config 1,4,1,5,2

1,5

In Detailed Setup, select the type of piping configuration from the picklist provided.In Review shows the type of piping configuration.

PO/PV LRV 1,4,4,3,41,5

Shows the PO/PV LRV.

PO/PV Map 1,4,4,3,21,5

Shows whether the PV is mapped to Volume Flow, Mass Flow, BVolFlow, or Velocity.

PO/PV URV 1,4,4,3,31,5

Shows the PO/PV URV.

Poll Addr 1,4,4,4,1

1,5

In Detailed Setup, configure the poll address to a number from 0 through 15. A nonzero number applies to multidrop applications.In Review, shows the poll address.

Primary Display 1,4,4,6,2 Select the first measurement to be displayed.Process Density 1,4,1,4,6

1,5

In Detailed Setup, enter the flow density in the density unit specified.In Review, shows the process density.

Process Parameters 1,4,1,4 Path to configuring the process parameters.Process Temperature 1,4,1,4,4

1,5

In Detailed Setup, enter the flow temperature in the temperature unit specified.In Review, shows the process temperature.

Process Variables 1,11,4,1,1

Path to viewing the process variable values.

Process Viscosity 1,2,61,4,1,4,9

1,5

In Diag/Service, shows the process viscosity value.In Detailed Setup, enter the base viscosity in the viscosity unit specified.In Review, shows the process viscosity.

Pulse Add Drop 1,4,3,2

1,5

In Detailed Setup, configure the pulse compensation (signal conditioning) feature On or Off.In Review, shows the pulse compensation as On or Off.

Pulse Map 1,4,4,3,21,5

Shows whether the pulse is mapped to Volume Flow, Mass Flow, BVolFlow, or Velocity.

Pulse Max Freq 1,4,4,3,5

1,5

In Detailed Setup, set the upper frequency end point corresponding to the highest frequency as 10, 100, or 1000 Hz.In Review, shows the pulse maximum frequency.

Pulse Mode 1,4,4,3,1

1,5

In Detailed Setup, select the type of pulse output as Rate, Total, Raw, or Off.In Review, shows the type of pulse output.

Pulse Operations 1,2,1,1 Procedure to start, pause or clear the pulse total.Pulse Out 1,2,6,8 Shows the pulse value.


76


Pulse Output 1,4,4,3 Path to configuring the pulse output.Pulse Resolution 1,4,4,3,5 Enter the units per pulse.Pulse Status 1,2,6,9 Shows the pulse status.Pulse Total EGU 1,4,4,3,4 Select the unit from the picklist provided.Pulse Width 1,4,4,3,3 Select the pulse width as 0.5, 5, or 50 ms.PV 2

1,1,11,4,1,1,1

Shows the value of the process variable.

PV % Rnge 1,1,21,4,1,1,2

Shows the process variable in percent of range.

PV AO 31,1,31,4,1,1,3

Shows the analog output of the process variable.

PV Configuration 1,4,1,2 Path to configuring the PV parameters.PV Damp 1,5 Shows the damping time.PV Damping 1,3,8

1,4,1,2,4Enter the damping time if different than the one shown.

PV Map 1,3,51,4,1,2,1

Map the PV to Volume Flow, Mass Flow, BVolFlow, or Velocity.

PV Min Span 1,5 Shows the minimum span.PV Units 1,3,6

1,4,1,2,21,5

In Basic Setup, select the PV units from the picklist. In Detailed Setup, select the PV units from the picklist.In Review, shows the PV units.

PV URV 4

1,3,71,4,1,2,3

In the Basic Menu, shows the process variable upper range value.In Basic Setup, enter the PV URV.In Detailed Setup, enter the PV URV.

PV USL 71,5

In the Basic Menu, shows the upper sensor limit.In Review, shows the upper sensor limit.

Review 1,5 Path to viewing flowmeter values and settings.Revisions 1,4,5,6 Path to configuring the various revision levels.Reynolds Number 1,4,3,1 Configure the Reynolds Number correction feature On or

Off.Scaled D/A Trim 1,2,5,2

1,4,4,2,5,2Procedure to trim the low and high mA output values of the flowmeter to match the output of a plant standard measurement device.

Self Test 1,2,3 Procedure to self test the device.Serial Number 1,4,2,4

1,5In Detailed Setup, enter the serial number.In Review, shows the serial number.

Set Analog Out 1,2,4,21,4,4,2,4

Procedure to set the analog output to 4 mA, 20 mA, or another value.

Set Digital Out 1,2,4,11,4,4,1,2

Procedure to set the digital output to override the PV, net total, grand total, or vortex frequency.


77


Set Fluid Defaults 1,3,21,4,1,4,1

Path to setting the default parameters for the type of fluid selected (liquid, gas, or steam).

Set Pulse Out 1,2,4,31,4,4,3,6

Procedure to set the pulse output to 0 Hz, the maximum frequency, or another value.

Show 1,4,4,6,1 Specify which measurements are to be displayed and their format (decimal point placement).

Software Rev 1,5 Shows the software revision level.Software Sub-Revision 1,5 Shows the software sub-revision level.Special 1,4,2,5 Path to configuring special flowtube parameters.Tag 1,3,9

1,4,5,21,5

In Basic Setup, enter the tag (8 characters maximum).In Detailed Setup, enter the tag (8 characters maximum).In Review, shows the tag.

Temperature Units 1,4,1,4,3

1,5

In Detailed Setup, select the temperature unit from the picklist provided.In Review, shows the temperature units.

Total Units 1,4,1,3 Path to configuring the totals parameters.Totals Operations 1,2,1 Path to viewing, starting, stopping, or clearing the

totalizers.Tube Alpha 1,4,2,5,2 Enter the thermal coefficient of expansion (alpha) in

m/m/°K.Tube Diameter 1,4,2,5,1 Enter the custom flowtube diameters in meters.Tuning 1,4,3 Path to configuring the tuning parameters.Universal Rev 1,5 Shows the universal command set revision level.Upstream Distance 1,4,1,5,3

1,5

In Detailed Setup, enter the distance to the first upstream disturbance in pipe diameters.In Review, shows the upstream distance.

Variable Map 1,4,4,1,1 Map the output as the primary, secondary, tertiary, or fourth output.

Velocity Status 1,2,6,2 Shows the flow velocity status.Velocity Units 1,4,1,2,5 In Detailed Setup, select the unit from the picklist.Viscosity Status 1,2,6 Shows the process viscosity status.Vortex Freq 1,1,6

1,4,1,1,6Shows the vortex frequency.


78

5. Troubleshooting

CAUTION!!!Components in your flowmeter are ESD sensitive and thus are susceptible to damage resulting from electrostatic discharge. Invensys recommends that you be grounded via a conductive wrist strap or by standing on an ESD mat when performing maintenance in the electronics compartment or the remote junction box, and if the housing is removed.

NOTEBefore troubleshooting your vortex flowmeter, verify that the flowmeter has been correctly configured for the model, flow, and output parameters.

Flowmeter Output Indicates Flow When There Is No FlowIn some installations, the flowmeter can indicate flow when the line is shut down. This could be the effect of a leaking valve, sloshing fluid, or noise sources such as pump-induced pipe vibration.

1. Check the Low Flow Cut-In (LFCI) setting.The LFCI setting sets the sensitivity of the electronics to the sensor output signal. There are eight LFCI settings. The default setting leaving the factory is level 4 and is suitable for most applications. Should there be excessive vibration, resulting in false excitation of the vortex sensor, it may be necessary to increase the LFCI setting. To set the LFCI:

a. Make sure there is a no-flow condition. Preferably block valves should be closed. Control valves can leak when closed, resulting in some flow through the flowmeter that it can detect.

NOTESetting the dampening to 0 seconds will show the magnitude of any false excitation.)

b. Increase the LFCI setting by one level and observe the signal output. The LFCI should be increased until there is no false signal. Alternately, the AUTO LFCI command can be used. When this command is executed, the flowmeter starts at the most sensitive LFCI setting. If false signal is detected within a 20 second period, the LFCI is increased to the next level and so on until a level is reached where there is no false signal after a 20 second time period.

c. If dampening was changed to 0 seconds, change dampening to a desired level.

d. If the LFCI level has changed, make sure controllers and receivers can accommodate the increased LFCI setting. Output remains at 4 mA from zero flow until this flow rate is reached.

2. If the LFCI is higher than desired, there are several possible causes:

79

MI 019-202 – April 2010 5. Troubleshooting

a. Check the flowmeter sizing. The flowmeter could be over-sized for the

application, resulting in the need to provide a measurement at a very low flow velocity. Consult FlowExpertPro™ to validate the meter sizing.

b. Check for excessive vibration in a plane that is parallel to the vortex sensor. The vortex sensor axis is perpendicular to the pipe diameter. See Figure 14. For most applications where the electronics are top mounted and the pipe is supported by horizontal pipe supports, this may result in false signal. In these cases, reposition the meter so the electronics are pointed to the side. The sensor axis will then be vertical.

c. Examine peripheral equipment and vibration sources to assure they are not imparting vibration into the vortex flowmeter.

3. Other sources of false signal:

a. Check for 60 Hz signal pickup. Check the output of the flowmeter against the expected value for a 60 Hz input signal. If 60 Hz interference is present, examine the flowmeter and interconnecting wiring for proper grounding and shielding.

b. If the flowmeter is remote mounted, check to see that the remote cable is properly terminated. The cable was properly terminated at the factory, but in cases where the cable was shortened (only shorten the cable at the flowtube end), check the termination (see “Electrical Installation” on page 31).

Flowmeter Has No Output (No mA Output and the Display [If So Equipped] Is Blank)

1. Remove the field wiring cover and check the power supply voltage. The voltage across the + and - terminals must be between 15.5 and 42 volts dc.

2. Make sure there is no moisture in the termination compartment. Moisture could be a result of a loose cable/conduit connection or a cover that was not fully engaged.

3. If voltage at the terminals is 0, check for a blown fuse in power supply or for damaged wires.

4. If voltage is below minimum, check the loop load vs supply voltage per Figure 26.

5. If voltage is correct, check the voltage on the cable inside the housing to verify the protection circuit in the terminal block assembly has not been damaged. If no voltage is present on the cable inside the housing, replace the terminal block assembly.

Flowmeter Has No Output With Flow, But Has a 4 mA Signal and a Lighted Display (If So Equipped).

1. Check the LFCI setting. This sets the point where the mA output remains at 4 mA from zero flow to the LFCI flow rate. If flow is above this level, and there is still no change in output, proceed as follows:

2. Check the flowmeter status to see it has not "failed low". The flowmeter is configurable to fail either "low" or "high". The mA value in the fail-low mode is 3.6 mA. (The mA value in the fail-high mode is 22 mA.)

80

5. Troubleshooting MI 019-202 – April 2010

3. Check to see that the module can output the desired mA or pulse output frequency by

going to the Test mode and setting the outputs as previously described.

Flowmeter Output Increases With Flow, However When It Approaches Full Scale, the Output Suddenly Goes To 4 mA.

1. This is indicative of an intrinsically safe loop that is using a passive (unpowered) barrier. As the mA value increases, the voltage at the terminals has dropped below the minimum and the output has gone to 4 mA.

2. Install an active (externally powered) barrier such as a Pepperl+Fuchs modelKFD0-SCS-Ex1.55

Flowmeter with Remote Mounted Electronics Has No Output or Low Output With Flowing Conditions

1. Perform a visual analysis of the preamplifier to observe any discoloration as a result of over heating the remote mounted pre-amplifier. Check the maximum ambient temperature specification per the electrical certification table and/or the product label.

2. Make sure there is no moisture in the termination compartment. Moisture could be a result of a loose cable/conduit connection or a cover that was not fully engaged.

3. Check the voltage levels at the junction box located on top of the flow meter body. The following values should be observed:

a. Red to yellow: + 3.0 +/- 0.3 volts

b. Orange to yellow: - 3.0 +/- 0.3 volts.

If these values are not observed there is likely a break or cut in the cable between the flowmeter and the remote electronics. Or, the pre-amplifier may not be working.

4. Check to verify the sensor wires and cable wires are fully engaged in the clamp-type connectors. This can be done by lightly "tugging" on each wire, assuring it is securely held in place by the connector. Also check to make sure the connector is not clamping the wire insulation instead of the conductor. If any wires are not engaged, depress the lever in the connector, insert the bare conductor, and release the lever, re-checking the wire to assure it is firmly clamped.

5. Check for sensor output. This can be done with a small portable scope meter. There should be a sine-like wave form on the meter. This wave for does not have to be sinusoidal, but alternating output should be observed. The amplitude of the signal is dependant on sensor type and velocity. The frequency of the output should be in accordance with the expected flow rate.

6. Check the pre-amplifier:

a. Disconnect the sensor leads

b. For a standard temperature sensor, connect a 2200 pF +/- 5% 50V NPO ceramic capacitor to the + (brown) terminal of the sensor terminal block.

81


c. Connect a portable frequency generator that can supply a sinusoidal 0.5 volt peak-

to-peak signal to the sensor input terminals.

d. Compute the expected sensor frequency for the flow rate going through the flowmeter. (Use FlowExpertPro for making this determination, or compute the frequency based on the meter K-factor (this is stamped on the flowmeter body).

e. Re-check the output at the remote electronics. If there is output at the electronics, the sensor is likely not working and needs to be replaced.

f. If there is no output at the remote electronics, proceed to check the pre-amplifier by disconnecting the blue and yellow wires from the remote cable. (Note: the orange and red wires need to stay connected to provide power to the pre-amplifier.) Connect the scope meter to the blue and yellow (+ and -) terminals on the output terminal block. The amplitude of the signal should be approximately the same amplitude (0.5 volts) of the input signal and the same frequency.

g. For flowmeters with an extended temperature sensor, replace the 2200 pF capacitor with a 22pF capacitor. Set the frequency input amplitude to 0.5 volts peak to peak. The output from the preamplifier should be 1.5X the input value or 0.75 volts peak to peak, and be at the same frequency as the input.

h. If the output from the pre-amplifier is correct, proceed to check out the cable for breaks or cuts, and verify the remote cable is correctly connected to the junction box at the flowmeter.

i. The remote cable is factory-terminated and sealed at the electronics end. The cable cannot be removed or re-terminated at the electronics end. If the cable has been tampered with at the electronics end, this is likely the root cause of the improperly working flowmeter and requires replacement.

j. If the flowmeter still has no output, proceed to the electronics module test.

Electronics Module Test1. Remove the electronics compartment cover at the remote electronics.

2. Make sure there is no moisture in the electronics compartment. Moisture could be a result of a loose cable/conduit connection or a cover that was fully engaged. A build up of corrosive moisture in this compartment could affect the performance of the electronics. Also examine the electronics for exposure to excessive heat. The maximum temperature the electronics can withstand is 80°C (176°F). Make sure the installation is such that the electronics do not exceed this temperature.

3. Test the mA or pulse output by putting the flowmeter in the Test mode and setting either the mA or pulse output value. If the meter has no output in this test mode, replace the module. If there is output from the meter, proceed to the next step.

4. Remove the electronics from the compartment by loosing the two captured screws.

5. Check the inside for broken or pinched wires and/or connectors that are not engaged.

6. Check the voltage level at the cable end of the blue and red wires. The voltage should be the same as was measured on the field terminals. Should there be a difference, the terminal block electronics assembly may have been damaged in a severe transient (lightening strike).

82

5. Troubleshooting MI 019-202 – April 2010

7. Remove the 4-wire connector from the back of the electronics module. This is the

signal input connector from the sensor to the electronics module. In place of this connector, connect a test connector (part number K0152KU).

8. Connect a frequency generator to the brown (+) and yellow (-) wires. Inject a sinusoidal 0.5 V peak to peak signal that is in the vortex shedding frequency range for the flowmeter. Observe there is a change in the 4-20 mA or rate pulse output signal. Change the input frequency over the expected vortex frequency range and verify the output changes accordingly.

9. If there is still no output, replace the electronics module.

Flowmeter Has Incorrect Output1. Output is lower than expected at all flow rates

a. Verify that the upper range value (URV) is correct.

b. Verify that the zero and span of the mA output is correct.

c. Check for vibration levels, that may influence the output signal. This is best accomplished by following the procedure for setting the low flow cut-in in “Flowmeter Output Indicates Flow When There Is No Flow” on page 79.

d. Check the flowmeter configuration to verify that the fluid flowing density is entered correctly. An incorrect configuration could result in band pass filters being set to improper values, with in-band signals being adversely affected.

e. Check the load resistance.

f. In the test mode, verify that the mA output at the receivers is correct.

2. Output is lower than expected at low-flow rates.

Check the steps in the above test, however if the problem only appears at low flow rates, the likelihood is that there is a pulsating flow condition, resulting in missed pulses when the fluid velocity is very low.

3. Output is constant when flow is increasing or decreasing.

a. This condition is likely the result of an in-band noise source. Where the vortex signal is being over-ridden by the noise source.

b. Check the LFCI setting procedure. Check the URV value to make sure that it is in line with the actual measurement range.

4. Output is greater than the expected value.

a. Test the above.

b. Verify that the flowmeter is not in a "fail safe" mode where full scale output has been configured as the fail safe output condition.

c. Verify the URV is correctly configured.

5. Incorrect pulse output value.

a. Check the configuration of the pulse output to verify that it is correct.

♦ Raw Pulse: the raw vortex shedding frequency.

83


♦ Rate Pulse: verify that the rate pulse is configured to the correct full range value of

10 Hz, 100 Hz, or 1000 Hz.

♦ Total pulse: verify that the total pulse is properly defined.

b. If rate pulse is configured, set the output frequency in the test mode and verify the correct value.

84

6. Maintenance

CAUTION!!!Components in your flowmeter are ESD sensitive and thus are susceptible to damage resulting from electrostatic discharge. Invensys recommends that you be grounded via a conductive wrist strap or by standing on an ESD mat when performing maintenance in the electronics compartment or the remote junction box, and if the housing is removed.

IntroductionThe operation of the 84F-T, 84F-U, 84W-T, and 84W-U Vortex Flowmeters consists of three basic functions: (1) generation and shedding of vortices in the fluid stream, (2) sensing of vortices, and (3), amplification, conditioning, and processing of the signal from the vortex sensor. Should a malfunction of the flowmeter be suspected, the cause can normally be isolated to one of these three functions.

Personnel involved in maintenance of vortex meters should be trained and qualified in the use of the equipment required and in the removal and replacement of the meter in the piping. They should also be qualified for the routine maintenance of the meter components.

Vortex Generation and SheddingThe process of vortex generation and shedding can be degraded or destroyed by disturbances in the upstream flow, the nature of the flowing fluid, or by damage to the vortex shedding element (rare). Such flow disturbances may be created by gaskets protruding into the flowing stream, by some form of partial blockage in the upstream piping, by the piping configuration, or by the existence of two-phase flow. Should the vortex shedding element become heavily caked, coated, or physically damaged to the extent that its basic shape or dimensions are changed, the vortex shedding process may be impaired. Also, the length of straight, unobstructed run of upstream piping is important (refer to “Upstream and Downstream Disturbances” on page 17).

Vortex SensingThere are two basic types of sensors employed by both the 84F and 84W Vortex Flowmeters -Standard Temperature and Extended Temperature Range. The Standard Temperature Range sensor may be filled with Fluorolube for applications with process temperature limits of –20 to +90°C (0 to 200°F) or with Silicone oil for applications with process temperature limits of –20 to +200°C (0 to 400°F). The Extended Temperature Range sensor is an unfilled sensor for applications to 430 °C (800 °F).

The Standard Temperature Range sensor consists of a piezoelectric bimorph crystal that is sealed inside a liquid-filled capsule having two diaphragms on opposing sides. The vortex shedding process creates an alternating differential pressure across the capsule that is transmitted via the diaphragms and fill-fluid to the crystal.

85

MI 019-202 – April 2010 6. Maintenance

The Extended Temperature Range sensor consists of two piezoelectric crystals sealed inside a capsule having two process diaphragms, on opposing sides, connected internally by a mechanical shuttle. The vortex shedding process creates an alternating differential pressure across the capsule that is transmitted via the diaphragm-shuttle mechanism to the crystals.

The alternating force acting on the crystals causes them to develop a pulsed voltage with a frequency equal to the vortex shedding frequency. Damage to sealing diaphragms or other physical damage could cause the sensors to operate improperly.

Electronic ModuleThe electronic module is housed in the flowmeter housing opposite the side labeled FIELD TERMINALS. On the back of the module are three terminal blocks. See Table 14 for a summary of the terminal block connections.

NOTEIntegrally mounted flowmeters with standard temperature range do not have a preamplifier. Integrally mounted flowmeters with extended temperature range and all remotely mounted flowmeters do have a preamplifier.

Electronic Module RemovalRefer to Figure 46.

WARNING!Before proceeding, ensure that power is removed from the flowmeter.

1. For flowmeters with housing cover locks, screw the electronic compartment cover lock screw into the housing to unlock the cover.

2. Remove electronic module compartment threaded cover.

NOTEIf the cover cannot be removed by hand, insert a flat bar in the cover slot.

3. If a display is mounted to the electronic module, remove the display by loosening the two mounting screws and unplugging the ribbon cable from the electronic module.

Table 14. Electronic Module Terminal Block Connections

No. of Connectors Color Description

2RedBlue

Loop +Loop -

2YellowGreen

Pulse Out +Pulse Out -

4

Blue (B)Red (R)Orange (O)Yellow (Y)

Sensor + or Preamp Out +Preamp Power +Preamp Power -Sensor - or Preamp Out -

86

6. Maintenance MI 019-202 – April 2010

4. Unscrew the two captive screws, one on each side of the electronic module.

5. Pull the electronic module out of the housing far enough to be able to disconnect the wires from the terminal blocks on the back of the electronic module.

6. Disconnect the mA output (red - blue), pulse output (yellow - green), and preamplifier/sensor (blue - red - orange - yellow) cable connectors from the 2-, 3-, and 4-pin terminal blocks respectively.

7. Remove the electronic module from the housing.

Figure 46. Electronic Module Connections

Electronic Module ReplacementRefer to Figure 46.


1. Remove the electronic module. See “Electronic Module Removal” on page 86.

CAUTION!!!The replacement electronic module is shipped in a protective antistatic plastic bag. Do not remove it from this bag until it is ready to be installed in a flowmeter. This minimizes the possibility of damage due to accidental electrostatic discharge.

2. Remove the new electronic module from its protective bag.

3. Connect the mA output (red - blue) and pulse output (yellow - green), and preamplifier/sensor (blue - red - orange - yellow) cable connectors to the 2-, 3-, and 4-pin terminal blocks respectively on the back of the electronic module.

4. Back the two electronic module captive screws out of the module until the screws are captured by the plastic housing.

B+

Y

R+

B

POWER

PULSEY G

mA OUTPUT CONNECTOR

PULSE OUTPUT CONNECTOR

PREAMPLIFIER CABLEOR SENSOR WIRES

87


5. Turning the electronic module one turn maximum to take up the slack in the wires,

locate the module in the housing over the two mounting holes. Making sure that no wires are pinched under the module, tighten the captive mounting screws.

6. If the electronic module was equipped with a display, reinstall the display. Carefully fold the ribbon cable in the space between display and the electronic module so that it is not pinched. The display molding should rest firmly against the module molding before tightening the screws. See Figure 47.

Figure 47. Display Connection

7. The new electronic module must be configured to match the one just removed.

8. Perform the “Post-Assembly Dielectric Test” on page 93.

9. Replace the electronic compartment cover. On flowmeters with housing cover locks, relock the electronic compartment cover before operating the flowmeter.

Neck Board ReplacementAll 84F and 84W Series Vortex Flowmeters have a printed wiring board located in the neck of the instrument. This board (henceforth referred to as a neck board) functions as a preamplifier, barrier and/or interface depending on the specific model.

Preamplifier Board: In integrally mounted flowmeters with extended temperature range.

Barrier Board: In flowmeters with explosionproof/flameproof electrical certification. These flowmeters also have a PE ground in the electronics housing which must be disconnected as part of the preamplifier replacement procedure.

Interface Board: In all 84 Series flowmeters.

RIBBON CABLECONNECTOR

88


Removal Procedure



2. If your flowmeter has explosionproof/flameproof electrical certification, disconnect the two wires from the PE ground screw in the electronics housing.

3. If your housing has an anti-rotation screw, remove the red lacquer from the screw recess. Turn the screw three full turns counterclockwise (see Figure 24 for location). Remove the housing by rotating it counterclockwise (when viewed from the top).

4. If your housing has a retention clip, remove the red lacquer from the screw recess. Remove the screw completely, and slide the clip off the housing. Save the clip and screw for future use. Remove the housing by rotating it counterclockwise (when viewed from the top).

5. Disconnect the wires from the 4-position terminal block on the neck board.

6. Remove the two screws securing the neck board in its cup and remove the board from the cup. Save the screws (and barrier if applicable).

89


Figure 48. Preamplifier Assembly - Integrally Mounted

Installation Procedure


NOTEThe replacement neck board is shipped in a protective antistatic plastic bag. Do not remove the preamplifier from this bag until it is ready to be installed in a flowmeter. This prevents damage due to accidental electrostatic discharge.

PE GROUNDSCREW

SENSORWIRES

ELECTRONICSCABLE

NECK BOARD

SENSORWIRES

NECK CUP

HOUSING

PE WIRE

ELECTRONICSCABLE

BARRIER

B Y


CUP O-RING

90


1. Remove the neck board. See “Removal Procedure” on page 89.

2. Feed the (2 or 4) wires from the cup through the hole in the center of the neck board and connect them to the 4-position terminal block on the board.

3. Install the neck board into its cup and secure it (and the barrier if applicable) with the two screws previously removed.

4. Feed the electronics cable (and the PE ground wire if applicable) through the housing neck and into the electronics compartment.

5. Inspect the cup O-ring for damage. If the O-ring is damaged, replace it with the appropriate O-ring (see parts list for your transmitter). Lubricate the O-ring with silicone lubricant (Foxboro Part Number 0048130 or equivalent). Verify that the O-ring is situated in the groove of the neck.

WARNING!Failure to reuse or install the proper “Cup” O-ring for CSA labeled product violates ANSI / ISA 12.27.01.

6. Screw the housing onto the cup. Hand tighten until it bottoms. Do not over tighten.

7. If your housing has an anti-rotation screw, engage the anti-rotation screw until it touches the cup and back it off 1/8th turn. It is important that the screw is not touching the cup. Fill the screw recess with red lacquer (Foxboro Part Number X0180GS or equivalent). the housing may then be rotated up to one full turn counterclockwise for optimum access.

8. If your housing has a retention clip, insert the clip over the boss in the housing neck so that the hole in the clip is aligned with the hole in the boss. Install the screw but do not tighten. Rotate the housing up to one full turn counterclockwise for optimum access. Tighten the retention clip screw and fill the screw recess with red lacquer (Foxboro Part Number X0180GS or equivalent). The housing can still be rotated for optimum access.

9. If your flowmeter has explosionproof/flameproof electrical certification, reconnect the two (green) PE ground wires to the PE ground screw in the electronics housing.

10. Connect the mA output (red - blue) and pulse output (yellow - green), and electronics (blue - red - orange - yellow) cable connectors to the 2-, 3-, and 4-pin terminal blocks respectively on the back of the electronic module.

11. Back the two captive screws out of the module until the screws are captured by the plastic housing.

12. Rotate the module one-half to one full turn to slightly twist the wires together.

13. Locate the electronic module over the mounting holes, assure that no wires are pinched, and tighten the captive mounting screws.

14. Perform the “Post-Assembly Dielectric Test” on page 93.


91


Preamplifier Replacement

With integrally mounted electronics, the preamplifier is located on the neck board. See “Neck Board Replacement” on page 88.

With remotely mounted electronics, use the following procedure referring to Figure 49.

Removal Procedure


1. On flowmeters with a junction box cover lock, remove the lock.

2. Remove the junction box threaded cover.


Figure 49. Preamplifier Assembly - Remotely Mounted

3. Disconnect the (blue-red-orange-yellow) preamplifier wires from the 4-position terminal block and the (yellow and brown) sensor wires from the 2-position terminal block.

CAUTION!!!Note the position of the wires because the placement of colored wires in the correct position on the new preamplifier board is important.

4. Remove the preamplifier by removing the two screws securing it. Save the screws.

SENSORWIRES

SET SCREWTO SECURECOVER

REMOTE CABLE

TOELECTRONICSHOUSING

92


Installation Procedure


NOTEThe replacement preamplifier is shipped in a protective antistatic plastic bag. Do not remove the preamplifier from this bag until it is ready to be installed in a flowmeter. This prevents damage due to accidental electrostatic discharge.

1. Remove the preamplifier. See “Removal Procedure” on page 92.

NOTEThere are two preamplifier boards - be sure to install the correct board.

L0123HT for a standard temperature flowmeter andL0123HV for an extended temperature flowmeter.

2. Connect the (yellow and brown) sensor wires to the 2-position terminal block and the (blue-red-orange-yellow) preamplifier wires to the 4-position terminal block.

3. Mount the new preamplifier in the junction box using the two screws you saved when removing the old preamplifier.

4. Perform the “Post-Assembly Dielectric Test” below.

5. Replace the threaded junction box cover. On flowmeters with cover locks, relock the junction box cover before operating the flowmeter.

Post-Assembly Dielectric TestTo ensure there are no faults to ground in any of the internal wiring, apply 500 V ac or 707 V dc dielectric strength test for one minute between shorted input terminals and housing ground as shown in Figure 50.

Figure 50. Connections for Post-Assembly Dielectric Test

+PULSE

APPLY 500 V acOR 707 V dcBETWEENSHORTEDTERMINALS ANDGROUND FOR1 MINUTE

93


Sensor Replacement

The flowmeter does not need to be removed from the pipeline for sensor replacement. The pipeline must, however, be shut down and emptied before loosening the bonnet bolts.

Replacing the sensor does not cause a shift in the K-factor. Therefore, the flowmeter does not require recalibration.

CAUTION!!!The placement of colored wires in the correct position in the terminal blocks is important. Verify correctness.

Integrally Mounted FlowmeterRefer to Figure 51.

Sensor Assembly Removal



2. If your flowmeter has explosionproof/flameproof electrical certification, disconnect the two wires from the PE ground screw in the electronics housing.

3. Disconnect the conduit from the housing. Remove the terminal compartment cover and the wiring from the field wiring terminal block.

4. If your housing has an anti-rotation screw, remove the red lacquer from the screw recess. Turn the screw three full turns counterclockwise (see Figure 24 for location). Remove the housing by rotating it counterclockwise (when viewed from the top).

5. If your housing has a retention clip, remove the red lacquer from the screw recess. Remove the screw completely, and slide the clip off the housing. Save the clip and screw for future use. Remove the housing by rotating it counterclockwise (when viewed from the top).

6. Disconnect the (yellow and brown) sensor wires from the 4-position terminal block on the neck board. If your flowmeter has explosionproof/flameproof electrical certification, loosen the screw and rotate the metal barrier out of the way first.

7. Remove the bonnet bolts and lift off the electronic housing, bonnet, and sensor assembly as a unit.

8. Slide the sensor assembly out of the bonnet.

Sensor Assembly InstallationNOTE

Before beginning the assembly procedure, verify that you have the correct kit of parts. Kit part numbers can be found in PL 008-714.

94


The sensor kits consist of:

♦ 1 Sensor assembly

♦ 1 Sensor seal kit (containing an O-ring, gasket, flow dam, and 4 bonnet bolts)

♦ 2 Tie wraps

♦ 1 Instruction


1. If the flow dam has remained in the flowmeter body, remove it before starting to re-assemble. Also make sure that the O-ring chamfer in the bonnet is clean and doesn’t contain any pieces of the old O-ring.

2. Slide the new O-ring over the sensor wires and onto the neck of the sensor.

3. Place the new flat gasket over the sensor in contact with serrated sealing surface. Center the gasket. Slide the new flow dam into the groove of the sensor.

4. Feed the sensor wires through the hole in the bonnet until the sensor is touching the bonnet and the wires extend through the hole in the center of the neck board.

NOTEIt may be helpful to use a straw as a tool to do this. Slide a straw over the sensor wires and feed the straw through the bonnet and neck board. Then remove the straw.

5. Insert the sensor with the bonnet into the flowmeter body and secure with four new bonnet bolts finger tight.

WARNING!Do not use the bonnet bolts in the sensor replacement kits for 84F-xxxxxL flowmeters (dual measurement with isolation valves). Use four X0173TF bolts as shown in the parts list.

95


Figure 51. Sensor Replacement - Integrally Mounted Flowmeter

CUP

BONNET

O-RING

SENSOR ASSEMBLY

GASKET

FLOW DAM

PE GROUNDSCREW

ELECTRONICSCABLE

HOUSING

PE WIRE

NECK BOARD

SENSORWIRES

BARRIER


CUP O-RING

96


WARNING!

It is important that the gasket be sealed uniformly to provide a good seal. The following two steps assure a uniform seal. Failure to follow these steps could result in personal injury due to gasket leakage.

6. Tighten all bonnet bolts to 2.8 N•m (2 lb•ft) per the sequence shown in Figure 52.

Figure 52. Bonnet Bolt Torquing Sequence

7. Continue to tighten the bolts to 7 N•m (5 lb•ft) using the same sequence.

8. Continue to tighten the bolts in steps of 7 N•m (5 lb•ft) up to 34 N•m (25 lb•ft) using the same sequence.

9. Connect the (yellow and brown) sensor wires to the 4-position terminal block on the neck board. If your flowmeter has explosionproof/flameproof electrical certification, rotate the metal barrier into place and tighten its mounting screw. Lightly tug on each sensor wire to assure that the wire is firmly clamped in the terminal block. Also check that it is clamped on the metal conductor and not on the insulation.

10. Feed the electronics cable (and the PE ground wire if applicable) through the housing neck and into the electronics compartment.

11. Inspect the cup O-ring for damage. If the O-ring is damaged, replace it with the appropriate O-ring (see parts list for your transmitter). Lubricate the O-ring with silicone lubricant (Foxboro Part Number 0048130 or equivalent). Verify that the O-ring is situated in the groove of the neck.

WARNING!Failure to reuse or install the proper “Cup” O-ring for CSA labeled product violates ANSI / ISA 12.27.01.

12. Screw the housing onto the cup. Hand tighten until it bottoms. Do not over tighten.

13. If your housing has an anti-rotation screw, engage the anti-rotation screw until it touches the cup and back it off 1/8th turn. It is important that the screw is not touching the cup. Fill the screw recess with red lacquer (Foxboro Part Number X0180GS or equivalent). the housing may then be rotated up to one full turn counterclockwise for optimum access.

14. If your housing has a retention clip, insert the clip over the boss in the housing neck so that the hole in the clip is aligned with the hole in the boss. Install the screw but do not tighten. Rotate the housing up to one full turn counterclockwise for optimum access. Tighten the retention clip screw and fill the screw recess with red lacquer

1

3 2

4

97


(Foxboro Part Number X0180GS or equivalent). The housing can still be rotated for optimum access.

15. If your flowmeter has explosionproof/flameproof electrical certification, reconnect the two (green) PE ground wires to the PE ground screw in the electronics housing.

16. Connect the mA output (red - blue) and pulse output (yellow - green), and electronics (blue - red - orange - yellow) cable connectors to the 2-, 3-, and 4-pin terminal blocks respectively on the back of the electronics module. Apply tie wraps as required.

17. Back the two electronic module captive screws out of the module until the screws are captured by the plastic housing.

18. Turning the electronic module one turn maximum to take up the slack in the wires, locate the module over the mounting holes. Making sure that no wires are pinched under the module, tighten the captive mounting screws.

19. If the electronic module was equipped with a display, reinstall the display. Carefully fold the ribbon cable in the space between the display and the electronic module so that it is not pinched. The display molding should rest firmly against the module molding before tightening the screws.

20. Reconnect the conduit to the housing and the wiring to the field wiring terminal block.


WARNING!In order to maintain agency certification of this product and to prove the integrity of the parts and workmanship in containing process pressure, a hydrostatic pressure test must be performed. The meter must hold for one minute without leaking the appropriate pressure from Table 15.

Remotely Mounted FlowmeterRefer to Figure 53.

Table 15. Maximum Test Pressure

Model End Connection Test Pressure

84F ANSI Class 150 450 psi

PN 16 3.2 MPa

ANSI Class 300 1125 psi

PN 40 6 MPa

PN 64 9.6 MPa

ANSI Class 600 2250 psi

PN 100 15 MPa

84W All 15 MPa (2250 psi)

98


Sensor Assembly Removal


1. On flowmeters with a junction box cover lock, remove the cover lock.

2. Remove the junction box threaded cover.


3. Disconnect the (yellow and brown) sensor wires from the 2-position terminal block on the preamplifier.

4. Remove the bonnet bolts.

5. Lift off the junction box, bonnet, and sensor assembly as a unit.

6. Slide the sensor assembly out of the bonnet.

Sensor Assembly InstallationNOTE

Before beginning the replacement procedure, verify that you have the correct kit of parts. Kit part numbers can be found in PL 008-714.

The sensor kits consist of:

♦ 1 Sensor assembly

♦ 1 Sensor seal kit (containing an O-ring, gasket, flow dam, and 4 bonnet bolts)

♦ 2 Tie wraps

♦ 1 Instruction


1. If the flow dam has remained in the flowmeter body, remove it before starting to reassemble. Also make sure that the O-ring chamfer in the bonnet is clean and doesn’t contain any pieces of the old O-ring.

2. Slide the new O-ring over the sensor lead and onto the neck of the sensor.

3. Place the new flat gasket over the sensor in contact with the serrated sealing surface. Center the gasket. Slide the new flow dam into the groove of the sensor.

4. Feed the sensor wires through the hole in the bonnet until the sensor is touching the bonnet and the wires extend through the slot in the center of the preamplifier board.

NOTEIt may be helpful to use a straw as a tool to do this. Slide a straw over the sensor wires and feed the straw through the bonnet and preamplifier board. Then remove the straw.

99


5. Insert the sensor with the bonnet into the flowmeter body and secure with four new

bonnet bolts finger tight.

WARNING!Do not use the bonnet bolts in the sensor replacement kits for 84F-xxxxxL flowmeters (dual measurement with isolation valves). Use four X0173TF bolts as shown in the parts list.

Figure 53. Sensor Replacement - Remotely Mounted Flowmeter

WARNING!It is important that the gasket be sealed uniformly to provide a good seal. The following two steps assure a uniform seal. Failure to follow these steps could result in personal injury due to gasket leakage.


7. Continue to tighten the bolts to 7 N•m (5 lb•ft) using the same sequence.


0-RING

MECHANICALCONNECTORBOLTS

BONNET

SENSORASSEMBLY

FLOW DAM

GASKET

FLOWMETERBODY

TOELECTRONICSHOUSING

100


9. Connect the (yellow and brown) sensor wires to the 2-position preamplifier terminal

block.

10. Replace the threaded junction box cover. On flowmeters with cover locks, relock the junction box cover before operating the flowmeter.

WARNING!In order to maintain agency certification of this product and prove integrity of the parts and workmanship in containing process pressure, a hydrostatic pressure test must be performed. The meter must hold for one minute without leaking the appropriate pressure from Table 15.

101


102

Appendix A. Isolation Valves

Isolation valving is available in single and dual measurement versions for standard and extended range sensors. The following procedure applies to all versions. Replacing the sensor in this type of unit is essentially the same as replacing a sensor in units without isolation valving. However, particular care must be taken since the process does not need to be shut down.

WARNING!The isolation valve must be in the closed position prior to replacing the sensor. It must be gradually depressurized so that process fluid does not leak. Personal injury could result from such a leak. Follow normal lockout procedures. Remove power from the flowmeter.

Replacing the Sensor1. Close the valve. This is a dual port, single ball 1/4-turn valve. Use a wrench on the flat

on the valve stem to turn clockwise one quarter turn. See Figure 55.

NOTEThe right angle position indicator attached to the stem is not a valve handle. Use a wrench on the valve stem flats.

2. Allow the unit to cool down as required.

3. Remove power from the flowmeter.

4. Gradually loosen the four top bolts that connect the bonnet to the top surface of the valve body. Do not loosen the bottom bolts.

5. Allow trapped process fluid within valve body to depressurize.

6. Remove the bolts loosened in Step 4 and lift off the housing, bonnet, and sensor as a unit.

7. Replace the sensor following the instructions in “Sensor Replacement” on page 94. Be sure the O-ring is installed on the sensor and use a new flow dam and gasket.

CAUTION!!!Since it is not possible to leak test the valve-to-bonnet joint, it must be assembled carefully.

8. Open the valve counterclockwise. Use care and check for leaks.

NOTEReplacing the sensor does not cause a shift in the K-factor. Therefore, the meter does not require recalibration.

103

MI 019-202 – April 2010 Appendix A. Isolation Valves

Replacing or Installing an Isolation Valve

The flowmeter does not need to be removed from the pipeline to replace the isolation valve. However, the pipeline must be shut down and emptied before loosening the mounting bolts.

1. If the flowmeter is wired with rigid conduit, it may be necessary to disconnect the input wiring and conduit connections.

2. Remove the top bolts holding the bonnet and the bottom bolts holding the valve body.

3. Install a new gasket and flow dam on the lower section of the valve body and assemble the valve into the flowmeter body. Refer to Figure 55 or Figure 56. These are the same gaskets and flow dams used with sensors.

4. Install the four bolts on the bottom flange finger tight.

WARNING!It is important that the gasket be sealed uniformly to provide a good seal. The following two steps assure a uniform seal. Failure to follow these steps could result in personal injury due to gasket leakage.


Figure 54. Bonnet Bolt Torquing Sequence

6. Continue to tighten the bolts to 6.8 N•m (5 lb•ft) using the same sequence.


8. Install a new gasket and flow dam on the sensor. Hold the sensor, bonnet, and housing together and carefully slide the sensor into the top of the valve body.

9. Install the four bolts on the top flange and tighten, using the procedure explained in Steps 4 through 7.

WARNING!It is important that the gasket be sealed uniformly to provide a good seal. Failure to follow these steps could result in personal injury due to gasket leakage.

10. Reconnect the conduit and external wiring. Refer to “Electrical Installation” on page 31.

1

3 2

4

104

Appendix A. Isolation Valves MI 019-202 – April 2010

Figure 55. Isolation Valve

OPEN

CLOSE

BONNET

SENSOR

GASKET

FLOW DAM

ISOLATION

VALVE

WRENCH FLAT

GASKET

FLOWDAM

O-RING

105

MI 019-202 – April 2010 Appendix A. Isolation Valves

Figure 56. Dual Manifold

BONNET

SENSOR

FLOW DAM

GASKET

DUAL VALVE

FLOW DAM

GASKET

O-RING

106

Index

CCalibration/Test Mode 63Configuration Database 48Cover Locks 29

DDatabase, Configuration 48Dielectric Test 93Dimensions 17Display, Positioning the 29

EElectrical Safety Specifications 9Electronic Module 86

Removal 86Replacement 87

Error Messages 66

FFlow Parameter, Setting 55Flowtube Parameters, Setting 60Fluid Parameters, Setting 55

HHousing, Positioning the 30

IIdentification 15Installation 15

Mechanical 16Isolation Valves 103

Replacing or Installing an Isolation Valve 104Replacing the Sensor 103

LLocal Display 45

107

MI 019-202 – April 2010 Index

MMaintenance 85Measure Mode 52Menu Tree, Setup 61Menu Tree, Using the 49Mounting the Remote Electronics Housing 28

NNeck Board Replacement 88

OOperation via Local Display 45Output Parameters, Setting 56

PPassword 46Piping 17

Effects of Piping on Flowmeter Performance 17Gas Installations 19Liquid Installations 18Location of Pressure and Temperature Taps 25Steam Installations 20

Piping Parameters, Setting 57Preamplifier Replacement 92

RReference Documents 1

SSensor Replacement 94Setup Menu Tree 61Setup Mode 54Specifications

Electrical Safety 9Standard 1

Status Mode 52

TTag Parameters, Setting 59Totals Mode 52Totals Parameters, Setting 56Troubleshooting 79Tuning Parameters, Setting 56

108

Index MI 019-202 – April 2010

UUnpacking 15

VView Mode 54

WWiring

Field Termination 34For 4 to 20 mA Output 36For Pulse Output 39

Write Protect Jumper, Setting the 30

109

MI 019-202 – April 2010 Index

IS V

SUE DATES FEB 2007 JUN 2008 FEB 2009 JAN 2010 APR 2010

ertical lines to the right of text or illustrations indicate areas changed at last issue date.

Invensys Operations Management5601 Granite Parkway Suite 1000Plano, TX 75024United States of Americahttp://www.iom.invensys.com

Global Customer SupportInside U.S.: 1-866-746-6477Outside U.S.:1-508-549-2424 or contact your local Invensys representative.Email: [email protected]: http://support.ips.invensys.com

Invensys, Foxboro, and I/A Series are trademarks of Invensys plc, its subsidiaries, and affiliates.All other brand names may be trademarks of their respective owners.

Copyright 2007-2010 Invensys Systems, Inc.All rights reserved

MB 100 0410